82813379 has 4 divisors (see below), whose sum is σ = 90341880. Its totient is φ = 75284880.

The previous prime is 82813337. The next prime is 82813387. The reversal of 82813379 is 97331828.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-82813379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82813309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3764234 + ... + 3764255.

It is an arithmetic number, because the mean of its divisors is an integer number (22585470).

Almost surely, 2^82813379 is an apocalyptic number.

82813379 is a deficient number, since it is larger than the sum of its proper divisors (7528501).

82813379 is a wasteful number, since it uses less digits than its factorization.

82813379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528500.

The product of its digits is 72576, while the sum is 41.

The square root of 82813379 is about 9100.1856574468. The cubic root of 82813379 is about 435.8798924978.

The spelling of 82813379 in words is "eighty-two million, eight hundred thirteen thousand, three hundred seventy-nine".