82123392 has 64 divisors (see below), whose sum is σ = 234934560. Its totient is φ = 25267200.

The previous prime is 82123381. The next prime is 82123397. The reversal of 82123392 is 29332128.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (82123397) 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, 3234 + ... + 13217.

Almost surely, 2^82123392 is an apocalyptic number.

It is an amenable number.

82123392 is an abundant number, since it is smaller than the sum of its proper divisors (152811168).

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

82123392 is a wasteful number, since it uses less digits than its factorization.

82123392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16481 (or 16469 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 82123392 is about 9062.1957604104. The cubic root of 82123392 is about 434.6659557284.

The spelling of 82123392 in words is "eighty-two million, one hundred twenty-three thousand, three hundred ninety-two".