839946479 has 16 divisors (see below), whose sum is σ = 867504000. Its totient is φ = 812941920.

The previous prime is 839946467. The next prime is 839946511. The reversal of 839946479 is 974649938.

It is a cyclic number.

It is not a de Polignac number, because 839946479 - 2⁴ = 839946463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839946449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356632 + ... + 1357250.

It is an arithmetic number, because the mean of its divisors is an integer number (54219000).

Almost surely, 2^839946479 is an apocalyptic number.

839946479 is a deficient number, since it is larger than the sum of its proper divisors (27557521).

839946479 is a wasteful number, since it uses less digits than its factorization.

839946479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its digits is 11757312, while the sum is 59.

The square root of 839946479 is about 28981.8301527008. The cubic root of 839946479 is about 943.5187562965.

The spelling of 839946479 in words is "eight hundred thirty-nine million, nine hundred forty-six thousand, four hundred seventy-nine".