3990958 has 8 divisors (see below), whose sum is σ = 6113952. Its totient is φ = 1952976.

The previous prime is 3990929. The next prime is 3990967. The reversal of 3990958 is 8590993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 21135 + ... + 21322.

It is an arithmetic number, because the mean of its divisors is an integer number (764244).

Almost surely, 2^3990958 is an apocalyptic number.

3990958 is a deficient number, since it is larger than the sum of its proper divisors (2122994).

3990958 is a wasteful number, since it uses less digits than its factorization.

3990958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42506.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 3990958 is about 1997.7382210890. The cubic root of 3990958 is about 158.6204042876.

The spelling of 3990958 in words is "three million, nine hundred ninety thousand, nine hundred fifty-eight".