82937779 has 4 divisors (see below), whose sum is σ = 82976184. Its totient is φ = 82899376.

The previous prime is 82937749. The next prime is 82937783. The reversal of 82937779 is 97773928.

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 82937779 - 2²³ = 74549171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82937719) 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, 15757 + ... + 20350.

It is an arithmetic number, because the mean of its divisors is an integer number (20744046).

Almost surely, 2^82937779 is an apocalyptic number.

82937779 is a deficient number, since it is larger than the sum of its proper divisors (38405).

82937779 is a wasteful number, since it uses less digits than its factorization.

82937779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38404.

The product of its digits is 1333584, while the sum is 52.

The square root of 82937779 is about 9107.0181179132. The cubic root of 82937779 is about 436.0980389330.

The spelling of 82937779 in words is "eighty-two million, nine hundred thirty-seven thousand, seven hundred seventy-nine".