3990079 has 8 divisors (see below), whose sum is σ = 4113648. Its totient is φ = 3867840.

The previous prime is 3990073. The next prime is 3990083. The reversal of 3990079 is 9700993.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3990079 - 2⁵ = 3990047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12429 + ... + 12745.

It is an arithmetic number, because the mean of its divisors is an integer number (514206).

Almost surely, 2^3990079 is an apocalyptic number.

3990079 is a deficient number, since it is larger than the sum of its proper divisors (123569).

3990079 is a wasteful number, since it uses less digits than its factorization.

3990079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 3990079 is about 1997.5182101798. The cubic root of 3990079 is about 158.6087581638.

The spelling of 3990079 in words is "three million, nine hundred ninety thousand, seventy-nine".