57897666 has 24 divisors (see below), whose sum is σ = 130092144. Its totient is φ = 19299060.

The previous prime is 57897661. The next prime is 57897667. The reversal of 57897666 is 66679875.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (57897661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59080 + ... + 60051.

It is an arithmetic number, because the mean of its divisors is an integer number (5420506).

Almost surely, 2^57897666 is an apocalyptic number.

57897666 is an abundant number, since it is smaller than the sum of its proper divisors (72194478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57897666 is a wasteful number, since it uses less digits than its factorization.

57897666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119148 (or 119136 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 57897666 is about 7609.0515834761. The cubic root of 57897666 is about 386.8598735520.

The spelling of 57897666 in words is "fifty-seven million, eight hundred ninety-seven thousand, six hundred sixty-six".