82908979 has 2 divisors, whose sum is σ = 82908980. Its totient is φ = 82908978.

The previous prime is 82908977. The next prime is 82909003. The reversal of 82908979 is 97980928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82908979 - 2¹ = 82908977 is a prime.

Together with 82908977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82908977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41454489 + 41454490.

It is an arithmetic number, because the mean of its divisors is an integer number (41454490).

Almost surely, 2^82908979 is an apocalyptic number.

82908979 is a deficient number, since it is larger than the sum of its proper divisors (1).

82908979 is an equidigital number, since it uses as much as digits as its factorization.

82908979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 82908979 is about 9105.4367824943. The cubic root of 82908979 is about 436.0475549931.

The spelling of 82908979 in words is "eighty-two million, nine hundred eight thousand, nine hundred seventy-nine".