56840923 has 2 divisors, whose sum is σ = 56840924. Its totient is φ = 56840922.

The previous prime is 56840909. The next prime is 56840941. The reversal of 56840923 is 32904865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56840923 - 2²¹ = 54743771 is a prime.

It is equal to p_3385585 and since 56840923 and 3385585 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (56840983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28420461 + 28420462.

It is an arithmetic number, because the mean of its divisors is an integer number (28420462).

Almost surely, 2^56840923 is an apocalyptic number.

56840923 is a deficient number, since it is larger than the sum of its proper divisors (1).

56840923 is an equidigital number, since it uses as much as digits as its factorization.

56840923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 56840923 is about 7539.2919428816. The cubic root of 56840923 is about 384.4917631740.

The spelling of 56840923 in words is "fifty-six million, eight hundred forty thousand, nine hundred twenty-three".