57887887 has 4 divisors (see below), whose sum is σ = 57947760. Its totient is φ = 57828016.

The previous prime is 57887861. The next prime is 57887891. The reversal of 57887887 is 78878875.

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

It is a cyclic number.

It is not a de Polignac number, because 57887887 - 2¹⁹ = 57363599 is a prime.

It is a super-2 number, since 2×57887887² = 6702014922649538, which contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57887807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28462 + ... + 30427.

It is an arithmetic number, because the mean of its divisors is an integer number (14486940).

Almost surely, 2^57887887 is an apocalyptic number.

57887887 is a deficient number, since it is larger than the sum of its proper divisors (59873).

57887887 is an equidigital number, since it uses as much as digits as its factorization.

57887887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59872.

The product of its digits is 7024640, while the sum is 58.

The square root of 57887887 is about 7608.4089664003. The cubic root of 57887887 is about 386.8380919272.

The spelling of 57887887 in words is "fifty-seven million, eight hundred eighty-seven thousand, eight hundred eighty-seven".