82719492 has 12 divisors (see below), whose sum is σ = 193012176. Its totient is φ = 27573160.

The previous prime is 82719463. The next prime is 82719493. The reversal of 82719492 is 29491728.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (82719493) 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, 3446634 + ... + 3446657.

It is an arithmetic number, because the mean of its divisors is an integer number (16084348).

Almost surely, 2^82719492 is an apocalyptic number.

It is an amenable number.

82719492 is an abundant number, since it is smaller than the sum of its proper divisors (110292684).

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

82719492 is a wasteful number, since it uses less digits than its factorization.

82719492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893298 (or 6893296 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 82719492 is about 9095.0256734107. The cubic root of 82719492 is about 435.7151086149.

The spelling of 82719492 in words is "eighty-two million, seven hundred nineteen thousand, four hundred ninety-two".