3918772 has 72 divisors (see below), whose sum is σ = 8854272. Its totient is φ = 1497600.

The previous prime is 3918757. The next prime is 3918793. The reversal of 3918772 is 2778193.

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, 126397 + ... + 126427.

It is an arithmetic number, because the mean of its divisors is an integer number (122976).

Almost surely, 2^3918772 is an apocalyptic number.

It is an amenable number.

3918772 is an abundant number, since it is smaller than the sum of its proper divisors (4935500).

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

3918772 is a wasteful number, since it uses less digits than its factorization.

3918772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 74 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 3918772 is about 1979.5888462001. The cubic root of 3918772 is about 157.6582368711.

The spelling of 3918772 in words is "three million, nine hundred eighteen thousand, seven hundred seventy-two".