56397436 has 12 divisors (see below), whose sum is σ = 98749728. Its totient is φ = 28183232.

The previous prime is 56397413. The next prime is 56397437. The reversal of 56397436 is 63479365.

It is a junction number, because it is equal to n+sod(n) for n = 56397392 and 56397401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56397437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9300 + ... + 14116.

It is an arithmetic number, because the mean of its divisors is an integer number (8229144).

Almost surely, 2^56397436 is an apocalyptic number.

It is an amenable number.

56397436 is a deficient number, since it is larger than the sum of its proper divisors (42352292).

56397436 is a wasteful number, since it uses less digits than its factorization.

56397436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748 (or 7746 counting only the distinct ones).

The product of its digits is 408240, while the sum is 43.

The square root of 56397436 is about 7509.8226343902. The cubic root of 56397436 is about 383.4891844324.

The spelling of 56397436 in words is "fifty-six million, three hundred ninety-seven thousand, four hundred thirty-six".