56726904 has 64 divisors (see below), whose sum is σ = 154173600. Its totient is φ = 17289216.

The previous prime is 56726893. The next prime is 56726939. The reversal of 56726904 is 40962765.

56726904 is digitally balanced in base 2, 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 (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34452 + ... + 36060.

Almost surely, 2^56726904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56726904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77086800).

56726904 is an abundant number, since it is smaller than the sum of its proper divisors (97446696).

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

56726904 is a wasteful number, since it uses less digits than its factorization.

56726904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 56726904 is about 7531.7264952997. The cubic root of 56726904 is about 384.2345030307.

It can be divided in two parts, 56726 and 904, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 56726904 in words is "fifty-six million, seven hundred twenty-six thousand, nine hundred four".