82768423 has 4 divisors (see below), whose sum is σ = 82894680. Its totient is φ = 82642168.

The previous prime is 82768397. The next prime is 82768429. The reversal of 82768423 is 32486728.

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 82768423 - 2⁵ = 82768391 is a prime.

It is a super-2 number, since 2×82768423² = 13701223691813858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82768429) 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, 62140 + ... + 63457.

It is an arithmetic number, because the mean of its divisors is an integer number (20723670).

Almost surely, 2^82768423 is an apocalyptic number.

82768423 is a deficient number, since it is larger than the sum of its proper divisors (126257).

82768423 is a wasteful number, since it uses less digits than its factorization.

82768423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126256.

The product of its digits is 129024, while the sum is 40.

The square root of 82768423 is about 9097.7152626360. The cubic root of 82768423 is about 435.8010044260.

The spelling of 82768423 in words is "eighty-two million, seven hundred sixty-eight thousand, four hundred twenty-three".