82784493 has 24 divisors (see below), whose sum is σ = 132668640. Its totient is φ = 49318560.

The previous prime is 82784491. The next prime is 82784563. The reversal of 82784493 is 39448728.

82784493 is a `hidden beast` number, since 82 + 7 + 84 + 493 = 666.

It is not a de Polignac number, because 82784493 - 2¹ = 82784491 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82784491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1246 + ... + 12927.

It is an arithmetic number, because the mean of its divisors is an integer number (5527860).

Almost surely, 2^82784493 is an apocalyptic number.

It is an amenable number.

82784493 is a deficient number, since it is larger than the sum of its proper divisors (49884147).

82784493 is a wasteful number, since it uses less digits than its factorization.

82784493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14249 (or 14246 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 82784493 is about 9098.5984085462. The cubic root of 82784493 is about 435.8292070854.

The spelling of 82784493 in words is "eighty-two million, seven hundred eighty-four thousand, four hundred ninety-three".