57658990 has 16 divisors (see below), whose sum is σ = 104081760. Its totient is φ = 22997920.

The previous prime is 57658957. The next prime is 57659023. The reversal of 57658990 is 9985675.

It is an interprime number because it is at equal distance from previous prime (57658957) and next prime (57659023).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4441 + ... + 11620.

It is an arithmetic number, because the mean of its divisors is an integer number (6505110).

Almost surely, 2^57658990 is an apocalyptic number.

57658990 is a deficient number, since it is larger than the sum of its proper divisors (46422770).

57658990 is a wasteful number, since it uses less digits than its factorization.

57658990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16427.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 57658990 is about 7593.3516973732. The cubic root of 57658990 is about 386.3275473306.

The spelling of 57658990 in words is "fifty-seven million, six hundred fifty-eight thousand, nine hundred ninety".