82319994 has 12 divisors (see below), whose sum is σ = 178360026. Its totient is φ = 27439992.

The previous prime is 82319987. The next prime is 82319999. The reversal of 82319994 is 49991328.

It can be written as a sum of positive squares in only one way, i.e., 62204769 + 20115225 = 7887^2 + 4485^2 .

It is not an unprimeable number, because it can be changed into a prime (82319999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2286649 + ... + 2286684.

Almost surely, 2^82319994 is an apocalyptic number.

82319994 is an abundant number, since it is smaller than the sum of its proper divisors (96040032).

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

82319994 is a wasteful number, since it uses less digits than its factorization.

82319994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4573341 (or 4573338 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 82319994 is about 9073.0366471210. The cubic root of 82319994 is about 435.0125402647.

It can be divided in two parts, 8231 and 9994, that added together give a square (18225 = 135²).

The spelling of 82319994 in words is "eighty-two million, three hundred nineteen thousand, nine hundred ninety-four".