3218957 has 12 divisors (see below), whose sum is σ = 3775680. Its totient is φ = 2736216.

The previous prime is 3218953. The next prime is 3218987. The reversal of 3218957 is 7598123.

It is not a de Polignac number, because 3218957 - 2² = 3218953 is a prime.

It is a Duffinian number.

Its product of digits (15120) is a multiple of the sum of its prime factors (560).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218953) 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, 8588 + ... + 8954.

It is an arithmetic number, because the mean of its divisors is an integer number (314640).

Almost surely, 2^3218957 is an apocalyptic number.

It is an amenable number.

3218957 is a deficient number, since it is larger than the sum of its proper divisors (556723).

3218957 is a wasteful number, since it uses less digits than its factorization.

3218957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 553 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 3218957 is about 1794.1452003670. The cubic root of 3218957 is about 147.6516796482.

The spelling of 3218957 in words is "three million, two hundred eighteen thousand, nine hundred fifty-seven".