82426812 has 48 divisors (see below), whose sum is σ = 219314592. Its totient is φ = 23869440.

The previous prime is 82426801. The next prime is 82426837. The reversal of 82426812 is 21862428.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12889 + ... + 18192.

It is an arithmetic number, because the mean of its divisors is an integer number (4569054).

Almost surely, 2^82426812 is an apocalyptic number.

It is an amenable number.

82426812 is an abundant number, since it is smaller than the sum of its proper divisors (136887780).

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

82426812 is a wasteful number, since it uses less digits than its factorization.

82426812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31118 (or 31116 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 82426812 is about 9078.9213015644. The cubic root of 82426812 is about 435.2006156165.

It can be divided in two parts, 82426 and 812, that added together give a palindrome (83238).

The spelling of 82426812 in words is "eighty-two million, four hundred twenty-six thousand, eight hundred twelve".