3977912 has 8 divisors (see below), whose sum is σ = 7458600. Its totient is φ = 1988952.

The previous prime is 3977903. The next prime is 3977921. The reversal of 3977912 is 2197793.

It is an interprime number because it is at equal distance from previous prime (3977903) and next prime (3977921).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248612 + ... + 248627.

It is an arithmetic number, because the mean of its divisors is an integer number (932325).

Almost surely, 2^3977912 is an apocalyptic number.

It is an amenable number.

3977912 is a deficient number, since it is larger than the sum of its proper divisors (3480688).

3977912 is a wasteful number, since it uses less digits than its factorization.

3977912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497245 (or 497241 counting only the distinct ones).

The product of its digits is 23814, while the sum is 38.

The square root of 3977912 is about 1994.4703557586. The cubic root of 3977912 is about 158.4473781005.

It can be divided in two parts, 397791 and 2, that added together give a palindrome (397793).

The spelling of 3977912 in words is "three million, nine hundred seventy-seven thousand, nine hundred twelve".