3695147820 has 648 divisors, whose sum is σ = 14716722384. Its totient is φ = 747242496.

The previous prime is 3695147809. The next prime is 3695147861. The reversal of 3695147820 is 287415963.

3695147820 is a `hidden beast` number, since 3 + 69 + 514 + 78 + 2 + 0 = 666.

3695147820 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

3695147820 is strictly pandigital in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 55151427 + ... + 55151493.

It is a 1-persistent number, because it is pandigital, but 2⋅3695147820 = 7390295640 is not.

Almost surely, 2^3695147820 is an apocalyptic number.

3695147820 is a gapful number since it is divisible by the number (30) 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 3695147820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7358361192).

3695147820 is an abundant number, since it is smaller than the sum of its proper divisors (11021574564).

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

3695147820 is a wasteful number, since it uses less digits than its factorization.

3695147820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 3695147820 is about 60787.7275442996. The cubic root of 3695147820 is about 1546.0039724609.

The spelling of 3695147820 in words is "three billion, six hundred ninety-five million, one hundred forty-seven thousand, eight hundred twenty".