320884879 has 12 divisors (see below), whose sum is σ = 373614024. Its totient is φ = 274793904.

The previous prime is 320884873. The next prime is 320884919. The reversal of 320884879 is 978488023.

It is not a de Polignac number, because 320884879 - 2³ = 320884871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320884871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68944 + ... + 73450.

It is an arithmetic number, because the mean of its divisors is an integer number (31134502).

Almost surely, 2^320884879 is an apocalyptic number.

320884879 is a deficient number, since it is larger than the sum of its proper divisors (52729145).

320884879 is a wasteful number, since it uses less digits than its factorization.

320884879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974 (or 5967 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 320884879 is about 17913.2598652507. The cubic root of 320884879 is about 684.6202658482.

The spelling of 320884879 in words is "three hundred twenty million, eight hundred eighty-four thousand, eight hundred seventy-nine".