3727663656 has 32 divisors (see below), whose sum is σ = 9809642400. Its totient is φ = 1177156800.

The previous prime is 3727663651. The next prime is 3727663663. The reversal of 3727663656 is 6563667273.

3727663656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3727663599 and 3727663608.

It is not an unprimeable number, because it can be changed into a prime (3727663651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4086895 + ... + 4087806.

It is an arithmetic number, because the mean of its divisors is an integer number (306551325).

Almost surely, 2^3727663656 is an apocalyptic number.

It is an amenable number.

3727663656 is an abundant number, since it is smaller than the sum of its proper divisors (6081978744).

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

3727663656 is a wasteful number, since it uses less digits than its factorization.

3727663656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174729 (or 8174725 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 51.

The square root of 3727663656 is about 61054.5956992592. The cubic root of 3727663656 is about 1550.5254764996.

The spelling of 3727663656 in words is "three billion, seven hundred twenty-seven million, six hundred sixty-three thousand, six hundred fifty-six".