3986704 has 20 divisors (see below), whose sum is σ = 8179164. Its totient is φ = 1875968.

The previous prime is 3986699. The next prime is 3986711. The reversal of 3986704 is 4076893.

It can be written as a sum of positive squares in 2 ways, for example, as 3686400 + 300304 = 1920^2 + 548^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7057 + ... + 7600.

Almost surely, 2^3986704 is an apocalyptic number.

3986704 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3986704 is an abundant number, since it is smaller than the sum of its proper divisors (4192460).

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

3986704 is a wasteful number, since it uses less digits than its factorization.

3986704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14682 (or 14676 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3986704 is about 1996.6732331556. The cubic root of 3986704 is about 158.5640259201.

The spelling of 3986704 in words is "three million, nine hundred eighty-six thousand, seven hundred four".