82851774 has 16 divisors (see below), whose sum is σ = 167413008. Its totient is φ = 27332352.

The previous prime is 82851767. The next prime is 82851779. The reversal of 82851774 is 47715828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82851779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70597 + ... + 71760.

It is an arithmetic number, because the mean of its divisors is an integer number (10463313).

Almost surely, 2^82851774 is an apocalyptic number.

82851774 is an abundant number, since it is smaller than the sum of its proper divisors (84561234).

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

82851774 is a wasteful number, since it uses less digits than its factorization.

82851774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142459.

The product of its digits is 125440, while the sum is 42.

The square root of 82851774 is about 9102.2949853320. The cubic root of 82851774 is about 435.9472448304.

The spelling of 82851774 in words is "eighty-two million, eight hundred fifty-one thousand, seven hundred seventy-four".