82997123 has 4 divisors (see below), whose sum is σ = 90542328. Its totient is φ = 75451920.

The previous prime is 82997119. The next prime is 82997147. The reversal of 82997123 is 32179928.

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 82997123 - 2² = 82997119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82997113) 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, 3772586 + ... + 3772607.

It is an arithmetic number, because the mean of its divisors is an integer number (22635582).

Almost surely, 2^82997123 is an apocalyptic number.

82997123 is a deficient number, since it is larger than the sum of its proper divisors (7545205).

82997123 is a wasteful number, since it uses less digits than its factorization.

82997123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7545204.

The product of its digits is 54432, while the sum is 41.

The square root of 82997123 is about 9110.2756818880. The cubic root of 82997123 is about 436.2020270562.

Multiplying 82997123 by its sum of digits (41), we get a palindrome (3402882043).

The spelling of 82997123 in words is "eighty-two million, nine hundred ninety-seven thousand, one hundred twenty-three".