82439630 has 96 divisors (see below), whose sum is σ = 196064064. Its totient is φ = 24219648.

The previous prime is 82439629. The next prime is 82439639. The reversal of 82439630 is 3693428.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82439639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1129274 + ... + 1129346.

It is an arithmetic number, because the mean of its divisors is an integer number (2042334).

Almost surely, 2^82439630 is an apocalyptic number.

82439630 is an abundant number, since it is smaller than the sum of its proper divisors (113624434).

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

82439630 is a wasteful number, since it uses less digits than its factorization.

82439630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 82439630 is about 9079.6271949899. The cubic root of 82439630 is about 435.2231734558.

The spelling of 82439630 in words is "eighty-two million, four hundred thirty-nine thousand, six hundred thirty".