86087251 has 4 divisors (see below), whose sum is σ = 86113872. Its totient is φ = 86060632.

The previous prime is 86087237. The next prime is 86087257. The reversal of 86087251 is 15278068.

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

It is a cyclic number.

It is not a de Polignac number, because 86087251 - 2¹¹ = 86085203 is a prime.

It is a super-2 number, since 2×86087251² = 14822029569474002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86087251.

It is not an unprimeable number, because it can be changed into a prime (86087257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7660 + ... + 15193.

It is an arithmetic number, because the mean of its divisors is an integer number (21528468).

Almost surely, 2^86087251 is an apocalyptic number.

86087251 is a deficient number, since it is larger than the sum of its proper divisors (26621).

86087251 is a wasteful number, since it uses less digits than its factorization.

86087251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26620.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 86087251 is about 9278.3215615757. The cubic root of 86087251 is about 441.5497195688.

The spelling of 86087251 in words is "eighty-six million, eighty-seven thousand, two hundred fifty-one".