3964518 has 16 divisors (see below), whose sum is σ = 8810160. Its totient is φ = 1321488.

The previous prime is 3964517. The next prime is 3964523. The reversal of 3964518 is 8154693.

3964518 is a `hidden beast` number, since 3 + 9 + 645 + 1 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36655 + ... + 36762.

It is an arithmetic number, because the mean of its divisors is an integer number (550635).

Almost surely, 2^3964518 is an apocalyptic number.

3964518 is an abundant number, since it is smaller than the sum of its proper divisors (4845642).

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

3964518 is a wasteful number, since it uses less digits than its factorization.

3964518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73428 (or 73422 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3964518 is about 1991.1097408229. The cubic root of 3964518 is about 158.2693424393.

The spelling of 3964518 in words is "three million, nine hundred sixty-four thousand, five hundred eighteen".