56723706 has 32 divisors (see below), whose sum is σ = 135750720. Its totient is φ = 17453232.

The previous prime is 56723699. The next prime is 56723729. The reversal of 56723706 is 60732765.

It is a happy number.

56723706 is a `hidden beast` number, since 567 + 23 + 70 + 6 = 666.

56723706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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, 39700 + ... + 41103.

It is an arithmetic number, because the mean of its divisors is an integer number (4242210).

Almost surely, 2^56723706 is an apocalyptic number.

56723706 is an abundant number, since it is smaller than the sum of its proper divisors (79027014).

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

56723706 is a wasteful number, since it uses less digits than its factorization.

56723706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80827 (or 80821 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 56723706 is about 7531.5141903870. The cubic root of 56723706 is about 384.2272824414.

The spelling of 56723706 in words is "fifty-six million, seven hundred twenty-three thousand, seven hundred six".