82202879 has 4 divisors (see below), whose sum is σ = 89675880. Its totient is φ = 74729880.

The previous prime is 82202843. The next prime is 82202881. The reversal of 82202879 is 97820228.

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 82202879 - 2¹² = 82198783 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 (82202839) 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, 3736484 + ... + 3736505.

It is an arithmetic number, because the mean of its divisors is an integer number (22418970).

Almost surely, 2^82202879 is an apocalyptic number.

82202879 is a deficient number, since it is larger than the sum of its proper divisors (7473001).

82202879 is a wasteful number, since it uses less digits than its factorization.

82202879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473000.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 82202879 is about 9066.5803365988. The cubic root of 82202879 is about 434.8061478260.

The spelling of 82202879 in words is "eighty-two million, two hundred two thousand, eight hundred seventy-nine".