82639395 has 48 divisors (see below), whose sum is σ = 150014592. Its totient is φ = 42040320.

The previous prime is 82639393. The next prime is 82639399. The reversal of 82639395 is 59393628.

82639395 is a `hidden beast` number, since 8 + 2 + 639 + 3 + 9 + 5 = 666.

It is not a de Polignac number, because 82639395 - 2¹ = 82639393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 82639395.

It is not an unprimeable number, because it can be changed into a prime (82639393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86239 + ... + 87191.

It is an arithmetic number, because the mean of its divisors is an integer number (3125304).

Almost surely, 2^82639395 is an apocalyptic number.

82639395 is a deficient number, since it is larger than the sum of its proper divisors (67375197).

82639395 is a wasteful number, since it uses less digits than its factorization.

82639395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1049 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 82639395 is about 9090.6212658982. The cubic root of 82639395 is about 435.5744293843.

The spelling of 82639395 in words is "eighty-two million, six hundred thirty-nine thousand, three hundred ninety-five".