82427868 has 30 divisors (see below), whose sum is σ = 215483576. Its totient is φ = 27475848.

The previous prime is 82427857. The next prime is 82427887. The reversal of 82427868 is 86872428.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 126880 + ... + 127527.

Almost surely, 2^82427868 is an apocalyptic number.

It is an amenable number.

82427868 is an abundant number, since it is smaller than the sum of its proper divisors (133055708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82427868 is a wasteful number, since it uses less digits than its factorization.

82427868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254423 (or 254412 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 82427868 is about 9078.9794580669. The cubic root of 82427868 is about 435.2024741132.

It can be divided in two parts, 8242 and 7868, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 82427868 in words is "eighty-two million, four hundred twenty-seven thousand, eight hundred sixty-eight".