82110639 has 12 divisors (see below), whose sum is σ = 117983768. Its totient is φ = 50494800.

The previous prime is 82110617. The next prime is 82110641. The reversal of 82110639 is 93601128.

It is not a de Polignac number, because 82110639 - 2¹⁵ = 82077871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82110239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55864 + ... + 57314.

Almost surely, 2^82110639 is an apocalyptic number.

82110639 is a deficient number, since it is larger than the sum of its proper divisors (35873129).

82110639 is an equidigital number, since it uses as much as digits as its factorization.

82110639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 82110639 is about 9061.4920956761. The cubic root of 82110639 is about 434.6434547017.

The spelling of 82110639 in words is "eighty-two million, one hundred ten thousand, six hundred thirty-nine".