82404894 has 32 divisors (see below), whose sum is σ = 193624704. Its totient is φ = 23050080.

The previous prime is 82404871. The next prime is 82404923. The reversal of 82404894 is 49840428.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47164 + ... + 48879.

It is an arithmetic number, because the mean of its divisors is an integer number (6050772).

Almost surely, 2^82404894 is an apocalyptic number.

82404894 is an abundant number, since it is smaller than the sum of its proper divisors (111219810).

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

82404894 is a wasteful number, since it uses less digits than its factorization.

82404894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96072.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 82404894 is about 9077.7141395838. The cubic root of 82404894 is about 435.1620376649.

The spelling of 82404894 in words is "eighty-two million, four hundred four thousand, eight hundred ninety-four".