82806774 has 32 divisors (see below), whose sum is σ = 173905920. Its totient is φ = 26248992.

The previous prime is 82806743. The next prime is 82806791. The reversal of 82806774 is 47760828.

It is a super-3 number, since 3×82806774³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8107 + ... + 15209.

It is an arithmetic number, because the mean of its divisors is an integer number (5434560).

Almost surely, 2^82806774 is an apocalyptic number.

82806774 is an abundant number, since it is smaller than the sum of its proper divisors (91099146).

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

82806774 is a wasteful number, since it uses less digits than its factorization.

82806774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 82806774 is about 9099.8227455264. The cubic root of 82806774 is about 435.8683039386.

The spelling of 82806774 in words is "eighty-two million, eight hundred six thousand, seven hundred seventy-four".