3720752856 has 48 divisors (see below), whose sum is σ = 10349398800. Its totient is φ = 1206729792.

The previous prime is 3720752851. The next prime is 3720752863. The reversal of 3720752856 is 6582570273.

3720752856 is a `hidden beast` number, since 3 + 72 + 0 + 7 + 528 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720752851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695676 + ... + 701003.

It is an arithmetic number, because the mean of its divisors is an integer number (215612475).

Almost surely, 2^3720752856 is an apocalyptic number.

3720752856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3720752856 is an abundant number, since it is smaller than the sum of its proper divisors (6628645944).

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

3720752856 is a wasteful number, since it uses less digits than its factorization.

3720752856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396728 (or 1396721 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 3720752856 is about 60997.9741958698. The cubic root of 3720752856 is about 1549.5666990003.

The spelling of 3720752856 in words is "three billion, seven hundred twenty million, seven hundred fifty-two thousand, eight hundred fifty-six".