3609704736 has 240 divisors, whose sum is σ = 11651115168. Its totient is φ = 1091750400.

The previous prime is 3609704723. The next prime is 3609704737. The reversal of 3609704736 is 6374079063.

3609704736 is a `hidden beast` number, since 3 + 609 + 7 + 0 + 4 + 7 + 36 = 666.

3609704736 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3609704736² = 26059936562201659392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3609704691 and 3609704700.

It is not an unprimeable number, because it can be changed into a prime (3609704737) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6928156 + ... + 6928676.

Almost surely, 2^3609704736 is an apocalyptic number.

3609704736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3609704736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5825557584).

3609704736 is an abundant number, since it is smaller than the sum of its proper divisors (8041410432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3609704736 is an frugal number, since it uses more digits than its factorization.

3609704736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The square root of 3609704736 is about 60080.8183699257. The cubic root of 3609704736 is about 1533.9948199888.

The spelling of 3609704736 in words is "three billion, six hundred nine million, seven hundred four thousand, seven hundred thirty-six".