56908829 has 4 divisors (see below), whose sum is σ = 57688476. Its totient is φ = 56129184.

The previous prime is 56908807. The next prime is 56908837. The reversal of 56908829 is 92880965.

56908829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15602500 + 41306329 = 3950^2 + 6427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56908829 is a prime.

It is a super-2 number, since 2×56908829² = 6477229636302482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56908879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389714 + ... + 389859.

It is an arithmetic number, because the mean of its divisors is an integer number (14422119).

Almost surely, 2^56908829 is an apocalyptic number.

It is an amenable number.

56908829 is a deficient number, since it is larger than the sum of its proper divisors (779647).

56908829 is an equidigital number, since it uses as much as digits as its factorization.

56908829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779646.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 56908829 is about 7543.7940719508. The cubic root of 56908829 is about 384.6448155048.

The spelling of 56908829 in words is "fifty-six million, nine hundred eight thousand, eight hundred twenty-nine".