3990959 has 8 divisors (see below), whose sum is σ = 4667520. Its totient is φ = 3341016.

The previous prime is 3990929. The next prime is 3990967. The reversal of 3990959 is 9590993.

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

It is not a de Polignac number, because 3990959 - 2²⁰ = 2942383 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 (3990919) 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, 6329 + ... + 6930.

It is an arithmetic number, because the mean of its divisors is an integer number (583440).

Almost surely, 2^3990959 is an apocalyptic number.

3990959 is a deficient number, since it is larger than the sum of its proper divisors (676561).

3990959 is a wasteful number, since it uses less digits than its factorization.

3990959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13309.

The product of its (nonzero) digits is 98415, while the sum is 44.

The square root of 3990959 is about 1997.7384713721. The cubic root of 3990959 is about 158.6204175359.

The spelling of 3990959 in words is "three million, nine hundred ninety thousand, nine hundred fifty-nine".