82695639 has 32 divisors (see below), whose sum is σ = 122492160. Its totient is φ = 49310208.

The previous prime is 82695623. The next prime is 82695643. The reversal of 82695639 is 93659628.

It is not a de Polignac number, because 82695639 - 2⁴ = 82695623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82695659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190767 + ... + 191199.

It is an arithmetic number, because the mean of its divisors is an integer number (3827880).

Almost surely, 2^82695639 is an apocalyptic number.

82695639 is a deficient number, since it is larger than the sum of its proper divisors (39796521).

82695639 is a wasteful number, since it uses less digits than its factorization.

82695639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591.

The product of its digits is 699840, while the sum is 48.

The square root of 82695639 is about 9093.7142576617. The cubic root of 82695639 is about 435.6732236396.

The spelling of 82695639 in words is "eighty-two million, six hundred ninety-five thousand, six hundred thirty-nine".