8390879 has 8 divisors (see below), whose sum is σ = 9733248. Its totient is φ = 7084440.

The previous prime is 8390873. The next prime is 8390909. The reversal of 8390879 is 9780938.

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 8390879 - 2⁸ = 8390623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390873) 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, 8477 + ... + 9414.

It is an arithmetic number, because the mean of its divisors is an integer number (1216656).

Almost surely, 2^8390879 is an apocalyptic number.

8390879 is a deficient number, since it is larger than the sum of its proper divisors (1342369).

8390879 is a wasteful number, since it uses less digits than its factorization.

8390879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17965.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 8390879 is about 2896.7013998685. The cubic root of 8390879 is about 203.2056689136.

The spelling of 8390879 in words is "eight million, three hundred ninety thousand, eight hundred seventy-nine".