82279668 has 24 divisors (see below), whose sum is σ = 193967872. Its totient is φ = 27143424.

The previous prime is 82279663. The next prime is 82279693. The reversal of 82279668 is 86697228.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82279663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34180 + ... + 36507.

Almost surely, 2^82279668 is an apocalyptic number.

It is an amenable number.

82279668 is an abundant number, since it is smaller than the sum of its proper divisors (111688204).

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

82279668 is a wasteful number, since it uses less digits than its factorization.

82279668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70791 (or 70789 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 82279668 is about 9070.8140759250. The cubic root of 82279668 is about 434.9414956331.

The spelling of 82279668 in words is "eighty-two million, two hundred seventy-nine thousand, six hundred sixty-eight".