82399404 has 24 divisors (see below), whose sum is σ = 194428080. Its totient is φ = 27157504.

The previous prime is 82399403. The next prime is 82399433. The reversal of 82399404 is 40499328.

It is not an unprimeable number, because it can be changed into a prime (82399403) 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, 37509 + ... + 39644.

It is an arithmetic number, because the mean of its divisors is an integer number (8101170).

Almost surely, 2^82399404 is an apocalyptic number.

It is an amenable number.

82399404 is an abundant number, since it is smaller than the sum of its proper divisors (112028676).

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

82399404 is a wasteful number, since it uses less digits than its factorization.

82399404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77249 (or 77247 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 82399404 is about 9077.4117456464. The cubic root of 82399404 is about 435.1523736246.

The spelling of 82399404 in words is "eighty-two million, three hundred ninety-nine thousand, four hundred four".