3957618 has 16 divisors (see below), whose sum is σ = 9046080. Its totient is φ = 1130736.

The previous prime is 3957571. The next prime is 3957637. The reversal of 3957618 is 8167593.

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, 47073 + ... + 47156.

It is an arithmetic number, because the mean of its divisors is an integer number (565380).

Almost surely, 2^3957618 is an apocalyptic number.

3957618 is an abundant number, since it is smaller than the sum of its proper divisors (5088462).

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

3957618 is a wasteful number, since it uses less digits than its factorization.

3957618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94241.

The product of its digits is 45360, while the sum is 39.

The square root of 3957618 is about 1989.3762841655. The cubic root of 3957618 is about 158.1774697636.

The spelling of 3957618 in words is "three million, nine hundred fifty-seven thousand, six hundred eighteen".