57880978 has 8 divisors (see below), whose sum is σ = 87118668. Its totient is φ = 28841424.

The previous prime is 57880969. The next prime is 57880981. The reversal of 57880978 is 87908875.

57880978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49603849 + 8277129 = 7043^2 + 2877^2 .

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

It is a super-2 number, since 2×57880978² = 6700415228472968, which contains 22 as substring.

It is an unprimeable number.

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, 48801 + ... + 49972.

Almost surely, 2^57880978 is an apocalyptic number.

57880978 is a deficient number, since it is larger than the sum of its proper divisors (29237690).

57880978 is a wasteful number, since it uses less digits than its factorization.

57880978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99068.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The square root of 57880978 is about 7607.9549157444. The cubic root of 57880978 is about 386.8227014264.

The spelling of 57880978 in words is "fifty-seven million, eight hundred eighty thousand, nine hundred seventy-eight".