57858987 has 16 divisors (see below), whose sum is σ = 79107840. Its totient is φ = 37600992.

The previous prime is 57858937. The next prime is 57858991. The reversal of 57858987 is 78985875.

It is not a de Polignac number, because 57858987 - 2⁶ = 57858923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57858937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25464 + ... + 27642.

It is an arithmetic number, because the mean of its divisors is an integer number (4944240).

Almost surely, 2^57858987 is an apocalyptic number.

57858987 is a deficient number, since it is larger than the sum of its proper divisors (21248853).

57858987 is a wasteful number, since it uses less digits than its factorization.

57858987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402.

The product of its digits is 5644800, while the sum is 57.

The square root of 57858987 is about 7606.5095148826. The cubic root of 57858987 is about 386.7737060807.

The spelling of 57858987 in words is "fifty-seven million, eight hundred fifty-eight thousand, nine hundred eighty-seven".