56729727 has 10 divisors (see below), whose sum is σ = 84744528. Its totient is φ = 37819764.

The previous prime is 56729723. The next prime is 56729737. The reversal of 56729727 is 72792765.

It is not a de Polignac number, because 56729727 - 2² = 56729723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56729723) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 350103 + ... + 350264.

Almost surely, 2^56729727 is an apocalyptic number.

56729727 is a deficient number, since it is larger than the sum of its proper divisors (28014801).

56729727 is an equidigital number, since it uses as much as digits as its factorization.

56729727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700379 (or 700370 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 56729727 is about 7531.9139001983. The cubic root of 56729727 is about 384.2408767026.

The spelling of 56729727 in words is "fifty-six million, seven hundred twenty-nine thousand, seven hundred twenty-seven".