82513893 has 36 divisors (see below), whose sum is σ = 140703360. Its totient is φ = 42855120.

The previous prime is 82513891. The next prime is 82513897. The reversal of 82513893 is 39831528.

It is not a de Polignac number, because 82513893 - 2¹ = 82513891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82513891) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15468 + ... + 20106.

Almost surely, 2^82513893 is an apocalyptic number.

It is an amenable number.

82513893 is a deficient number, since it is larger than the sum of its proper divisors (58189467).

82513893 is a wasteful number, since it uses less digits than its factorization.

82513893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678 (or 4660 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 82513893 is about 9083.7158145772. The cubic root of 82513893 is about 435.3538196766.

The spelling of 82513893 in words is "eighty-two million, five hundred thirteen thousand, eight hundred ninety-three".