57878827 has 2 divisors, whose sum is σ = 57878828. Its totient is φ = 57878826.

The previous prime is 57878803. The next prime is 57878857. The reversal of 57878827 is 72887875.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57878827 - 2⁷ = 57878699 is a prime.

It is a super-2 number, since 2×57878827² = 6699917229791858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57878857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28939413 + 28939414.

It is an arithmetic number, because the mean of its divisors is an integer number (28939414).

Almost surely, 2^57878827 is an apocalyptic number.

57878827 is a deficient number, since it is larger than the sum of its proper divisors (1).

57878827 is an equidigital number, since it uses as much as digits as its factorization.

57878827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1756160, while the sum is 52.

The square root of 57878827 is about 7607.8135492400. The cubic root of 57878827 is about 386.8179096049.

The spelling of 57878827 in words is "fifty-seven million, eight hundred seventy-eight thousand, eight hundred twenty-seven".