82904893 has 4 divisors (see below), whose sum is σ = 83144160. Its totient is φ = 82665628.

The previous prime is 82904863. The next prime is 82904909. The reversal of 82904893 is 39840928.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82904893 - 2¹³ = 82896701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82904813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119113 + ... + 119806.

It is an arithmetic number, because the mean of its divisors is an integer number (20786040).

Almost surely, 2^82904893 is an apocalyptic number.

It is an amenable number.

82904893 is a deficient number, since it is larger than the sum of its proper divisors (239267).

82904893 is a wasteful number, since it uses less digits than its factorization.

82904893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239266.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 82904893 is about 9105.2124082857. The cubic root of 82904893 is about 436.0403916371.

The spelling of 82904893 in words is "eighty-two million, nine hundred four thousand, eight hundred ninety-three".