3990892 has 12 divisors (see below), whose sum is σ = 7028056. Its totient is φ = 1982880.

The previous prime is 3990863. The next prime is 3990901. The reversal of 3990892 is 2980993.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2409 + ... + 3712.

Almost surely, 2^3990892 is an apocalyptic number.

It is an amenable number.

3990892 is a deficient number, since it is larger than the sum of its proper divisors (3037164).

3990892 is a wasteful number, since it uses less digits than its factorization.

3990892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288 (or 6286 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 3990892 is about 1997.7217023399. The cubic root of 3990892 is about 158.6195298940.

It can be divided in two parts, 39908 and 92, that added together give a square (40000 = 200²).

The spelling of 3990892 in words is "three million, nine hundred ninety thousand, eight hundred ninety-two".