408890879 has 8 divisors (see below), whose sum is σ = 414382080. Its totient is φ = 403436376.

The previous prime is 408890857. The next prime is 408890891. The reversal of 408890879 is 978098804.

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 408890879 - 2²⁸ = 140455423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 408890879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408890809) 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, 13634 + ... + 31680.

It is an arithmetic number, because the mean of its divisors is an integer number (51797760).

Almost surely, 2^408890879 is an apocalyptic number.

408890879 is a deficient number, since it is larger than the sum of its proper divisors (5491201).

408890879 is a wasteful number, since it uses less digits than its factorization.

408890879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18349.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 408890879 is about 20221.0503930928. The cubic root of 408890879 is about 742.2253918433.

The spelling of 408890879 in words is "four hundred eight million, eight hundred ninety thousand, eight hundred seventy-nine".