82105394 has 16 divisors (see below), whose sum is σ = 142736256. Its totient is φ = 34692000.

The previous prime is 82105319. The next prime is 82105399. The reversal of 82105394 is 49350128.

It is a self number, because there is not a number n which added to its sum of digits gives 82105394.

It is not an unprimeable number, because it can be changed into a prime (82105399) 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, 40307 + ... + 42294.

It is an arithmetic number, because the mean of its divisors is an integer number (8921016).

Almost surely, 2^82105394 is an apocalyptic number.

82105394 is a deficient number, since it is larger than the sum of its proper divisors (60630862).

82105394 is a wasteful number, since it uses less digits than its factorization.

82105394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82681.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 82105394 is about 9061.2026795564. The cubic root of 82105394 is about 434.6341998983.

The spelling of 82105394 in words is "eighty-two million, one hundred five thousand, three hundred ninety-four".