56923809 has 8 divisors (see below), whose sum is σ = 75933312. Its totient is φ = 37931760.

The previous prime is 56923799. The next prime is 56923817. The reversal of 56923809 is 90832965.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56923809 - 2¹² = 56919713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56923879) 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, 10104 + ... + 14694.

It is an arithmetic number, because the mean of its divisors is an integer number (9491664).

Almost surely, 2^56923809 is an apocalyptic number.

It is an amenable number.

56923809 is a deficient number, since it is larger than the sum of its proper divisors (19009503).

56923809 is a wasteful number, since it uses less digits than its factorization.

56923809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8727.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 56923809 is about 7544.7868757176. The cubic root of 56923809 is about 384.6785623120.

The spelling of 56923809 in words is "fifty-six million, nine hundred twenty-three thousand, eight hundred nine".