82279679 has 4 divisors (see below), whose sum is σ = 82393584. Its totient is φ = 82165776.

The previous prime is 82279663. The next prime is 82279693. The reversal of 82279679 is 97697228.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82279679 - 2⁴ = 82279663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82279619) 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, 55862 + ... + 57315.

It is an arithmetic number, because the mean of its divisors is an integer number (20598396).

Almost surely, 2^82279679 is an apocalyptic number.

82279679 is a deficient number, since it is larger than the sum of its proper divisors (113905).

82279679 is a wasteful number, since it uses less digits than its factorization.

82279679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113904.

The product of its digits is 762048, while the sum is 50.

The square root of 82279679 is about 9070.8146822653. The cubic root of 82279679 is about 434.9415150156.

The spelling of 82279679 in words is "eighty-two million, two hundred seventy-nine thousand, six hundred seventy-nine".