56823428 has 12 divisors (see below), whose sum is σ = 99553692. Its totient is φ = 28379520.

The previous prime is 56823421. The next prime is 56823439. The reversal of 56823428 is 82432865.

It can be written as a sum of positive squares in 2 ways, for example, as 14807104 + 42016324 = 3848^2 + 6482^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56823391 and 56823400.

It is not an unprimeable number, because it can be changed into a prime (56823421) 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, 3833 + ... + 11328.

It is an arithmetic number, because the mean of its divisors is an integer number (8296141).

Almost surely, 2^56823428 is an apocalyptic number.

It is an amenable number.

56823428 is a deficient number, since it is larger than the sum of its proper divisors (42730264).

56823428 is a wasteful number, since it uses less digits than its factorization.

56823428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16102 (or 16100 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 56823428 is about 7538.1315987451. The cubic root of 56823428 is about 384.4523117055.

The spelling of 56823428 in words is "fifty-six million, eight hundred twenty-three thousand, four hundred twenty-eight".