82809702 has 20 divisors (see below), whose sum is σ = 185555436. Its totient is φ = 27603180.

The previous prime is 82809697. The next prime is 82809721. The reversal of 82809702 is 20790828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 255424 + ... + 255747.

Almost surely, 2^82809702 is an apocalyptic number.

82809702 is an abundant number, since it is smaller than the sum of its proper divisors (102745734).

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

82809702 is a wasteful number, since it uses less digits than its factorization.

82809702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511185 (or 511176 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 82809702 is about 9099.9836263589. The cubic root of 82809702 is about 435.8734412290.

The spelling of 82809702 in words is "eighty-two million, eight hundred nine thousand, seven hundred two".