3694986720 has 480 divisors, whose sum is σ = 14279037696. Its totient is φ = 895795200.

The previous prime is 3694986697. The next prime is 3694986803. The reversal of 3694986720 is 276894963.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6829650 + ... + 6830190.

Almost surely, 2^3694986720 is an apocalyptic number.

3694986720 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 3694986720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7139518848).

3694986720 is an abundant number, since it is smaller than the sum of its proper divisors (10584050976).

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

3694986720 is a wasteful number, since it uses less digits than its factorization.

3694986720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The square root of 3694986720 is about 60786.4024268586. The cubic root of 3694986720 is about 1545.9815047210.

The spelling of 3694986720 in words is "three billion, six hundred ninety-four million, nine hundred eighty-six thousand, seven hundred twenty".