86256305 has 4 divisors (see below), whose sum is σ = 103507572. Its totient is φ = 69005040.

The previous prime is 86256299. The next prime is 86256329. The reversal of 86256305 is 50365268.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40233649 + 46022656 = 6343^2 + 6784^2 .

It is not a de Polignac number, because 86256305 - 2²⁶ = 19147441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 8625626 + ... + 8625635.

It is an arithmetic number, because the mean of its divisors is an integer number (25876893).

Almost surely, 2^86256305 is an apocalyptic number.

It is an amenable number.

86256305 is a deficient number, since it is larger than the sum of its proper divisors (17251267).

86256305 is a wasteful number, since it uses less digits than its factorization.

86256305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17251266.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 86256305 is about 9287.4272540893. The cubic root of 86256305 is about 441.8385619419.

The spelling of 86256305 in words is "eighty-six million, two hundred fifty-six thousand, three hundred five".