56723858 has 8 divisors (see below), whose sum is σ = 85527228. Its totient is φ = 28214784.

The previous prime is 56723857. The next prime is 56723861. The reversal of 56723858 is 85832765.

It can be written as a sum of positive squares in 2 ways, for example, as 45387169 + 11336689 = 6737^2 + 3367^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56723857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73091 + ... + 73862.

Almost surely, 2^56723858 is an apocalyptic number.

56723858 is a deficient number, since it is larger than the sum of its proper divisors (28803370).

56723858 is a wasteful number, since it uses less digits than its factorization.

56723858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147148.

The product of its digits is 403200, while the sum is 44.

The square root of 56723858 is about 7531.5242813125. The cubic root of 56723858 is about 384.2276256400.

The spelling of 56723858 in words is "fifty-six million, seven hundred twenty-three thousand, eight hundred fifty-eight".