86256247 has 8 divisors (see below), whose sum is σ = 107540352. Its totient is φ = 67212600.

The previous prime is 86256223. The next prime is 86256263. The reversal of 86256247 is 74265268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86256247 - 2¹⁵ = 86223479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86256347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560029 + ... + 560182.

It is an arithmetic number, because the mean of its divisors is an integer number (13442544).

Almost surely, 2^86256247 is an apocalyptic number.

86256247 is a deficient number, since it is larger than the sum of its proper divisors (21284105).

86256247 is a wasteful number, since it uses less digits than its factorization.

86256247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120229.

The product of its digits is 161280, while the sum is 40.

The square root of 86256247 is about 9287.4241315878. The cubic root of 86256247 is about 441.8384629090.

The spelling of 86256247 in words is "eighty-six million, two hundred fifty-six thousand, two hundred forty-seven".