83213379 has 16 divisors (see below), whose sum is σ = 128640000. Its totient is φ = 53063208.

The previous prime is 83213363. The next prime is 83213381. The reversal of 83213379 is 97331238.

It is a happy number.

It is not a de Polignac number, because 83213379 - 2⁴ = 83213363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83213479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66379 + ... + 67620.

It is an arithmetic number, because the mean of its divisors is an integer number (8040000).

Almost surely, 2^83213379 is an apocalyptic number.

83213379 is a deficient number, since it is larger than the sum of its proper divisors (45426621).

83213379 is a wasteful number, since it uses less digits than its factorization.

83213379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134031 (or 134025 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 83213379 is about 9122.1367562649. The cubic root of 83213379 is about 436.5805522032.

The spelling of 83213379 in words is "eighty-three million, two hundred thirteen thousand, three hundred seventy-nine".