82851393 has 4 divisors (see below), whose sum is σ = 110468528. Its totient is φ = 55234260.

The previous prime is 82851389. The next prime is 82851397. The reversal of 82851393 is 39315828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (82851389) and next prime (82851397).

It is not a de Polignac number, because 82851393 - 2² = 82851389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82851397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13808563 + ... + 13808568.

It is an arithmetic number, because the mean of its divisors is an integer number (27617132).

Almost surely, 2^82851393 is an apocalyptic number.

It is an amenable number.

82851393 is a deficient number, since it is larger than the sum of its proper divisors (27617135).

82851393 is a wasteful number, since it uses less digits than its factorization.

82851393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27617134.

The product of its digits is 51840, while the sum is 39.

The square root of 82851393 is about 9102.2740565202. The cubic root of 82851393 is about 435.9465765842.

The spelling of 82851393 in words is "eighty-two million, eight hundred fifty-one thousand, three hundred ninety-three".