82838791 has 4 divisors (see below), whose sum is σ = 94672912. Its totient is φ = 71004672.

The previous prime is 82838779. The next prime is 82838809. The reversal of 82838791 is 19783828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82838791 - 2⁹ = 82838279 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 (82838741) 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, 5917050 + ... + 5917063.

It is an arithmetic number, because the mean of its divisors is an integer number (23668228).

Almost surely, 2^82838791 is an apocalyptic number.

82838791 is a deficient number, since it is larger than the sum of its proper divisors (11834121).

82838791 is a wasteful number, since it uses less digits than its factorization.

82838791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11834120.

The product of its digits is 193536, while the sum is 46.

The square root of 82838791 is about 9101.5817856019. The cubic root of 82838791 is about 435.9244724403.

The spelling of 82838791 in words is "eighty-two million, eight hundred thirty-eight thousand, seven hundred ninety-one".