82920823 has 2 divisors, whose sum is σ = 82920824. Its totient is φ = 82920822.

The previous prime is 82920821. The next prime is 82920833. The reversal of 82920823 is 32802928.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82920823 - 2¹ = 82920821 is a prime.

Together with 82920821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82920821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41460411 + 41460412.

It is an arithmetic number, because the mean of its divisors is an integer number (41460412).

Almost surely, 2^82920823 is an apocalyptic number.

82920823 is a deficient number, since it is larger than the sum of its proper divisors (1).

82920823 is an equidigital number, since it uses as much as digits as its factorization.

82920823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 82920823 is about 9106.0871399301. The cubic root of 82920823 is about 436.0683179285.

The spelling of 82920823 in words is "eighty-two million, nine hundred twenty thousand, eight hundred twenty-three".