82851918 has 16 divisors (see below), whose sum is σ = 165913680. Its totient is φ = 27582336.

The previous prime is 82851907. The next prime is 82851941. The reversal of 82851918 is 81915828.

It is a self number, because there is not a number n which added to its sum of digits gives 82851918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355 + ... + 13302.

It is an arithmetic number, because the mean of its divisors is an integer number (10369605).

Almost surely, 2^82851918 is an apocalyptic number.

82851918 is an abundant number, since it is smaller than the sum of its proper divisors (83061762).

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

82851918 is a wasteful number, since it uses less digits than its factorization.

82851918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17491.

The product of its digits is 46080, while the sum is 42.

The square root of 82851918 is about 9102.3028954216. The cubic root of 82851918 is about 435.9474973954.

The spelling of 82851918 in words is "eighty-two million, eight hundred fifty-one thousand, nine hundred eighteen".