3912885 has 24 divisors (see below), whose sum is σ = 6865560. Its totient is φ = 2061312.

The previous prime is 3912877. The next prime is 3912893. The reversal of 3912885 is 5882193.

It is an interprime number because it is at equal distance from previous prime (3912877) and next prime (3912893).

It can be written as a sum of positive squares in 4 ways, for example, as 651249 + 3261636 = 807^2 + 1806^2 .

It is not a de Polignac number, because 3912885 - 2³ = 3912877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3517 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (286065).

Almost surely, 2^3912885 is an apocalyptic number.

It is an amenable number.

3912885 is a deficient number, since it is larger than the sum of its proper divisors (2952675).

3912885 is a wasteful number, since it uses less digits than its factorization.

3912885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1074 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 3912885 is about 1978.1013624180. The cubic root of 3912885 is about 157.5792496107.

The spelling of 3912885 in words is "three million, nine hundred twelve thousand, eight hundred eighty-five".