84379031 has 16 divisors (see below), whose sum is σ = 94348800. Its totient is φ = 74817600.

The previous prime is 84379013. The next prime is 84379033. The reversal of 84379031 is 13097348.

It is not a de Polignac number, because 84379031 - 2⁶ = 84378967 is a prime.

It is a super-2 number, since 2×84379031² = 14239641744997922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84378982 and 84379000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84379033) 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, 76796 + ... + 77886.

It is an arithmetic number, because the mean of its divisors is an integer number (5896800).

Almost surely, 2^84379031 is an apocalyptic number.

84379031 is a deficient number, since it is larger than the sum of its proper divisors (9969769).

84379031 is a wasteful number, since it uses less digits than its factorization.

84379031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 84379031 is about 9185.8059526641. The cubic root of 84379031 is about 438.6096453410.

The spelling of 84379031 in words is "eighty-four million, three hundred seventy-nine thousand, thirty-one".