82097620 has 24 divisors (see below), whose sum is σ = 188078688. Its totient is φ = 29853600.

The previous prime is 82097549. The next prime is 82097623. The reversal of 82097620 is 2679028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82097623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186366 + ... + 186805.

It is an arithmetic number, because the mean of its divisors is an integer number (7836612).

Almost surely, 2^82097620 is an apocalyptic number.

It is an amenable number.

82097620 is an abundant number, since it is smaller than the sum of its proper divisors (105981068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82097620 is a wasteful number, since it uses less digits than its factorization.

82097620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373191 (or 373189 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 82097620 is about 9060.7736976486. The cubic root of 82097620 is about 434.6204819489.

The spelling of 82097620 in words is "eighty-two million, ninety-seven thousand, six hundred twenty".