86891263 has 8 divisors (see below), whose sum is σ = 91324800. Its totient is φ = 82512408.

The previous prime is 86891257. The next prime is 86891293. The reversal of 86891263 is 36219868.

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

It is not a de Polignac number, because 86891263 - 2²¹ = 84794111 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 (86891213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10393 + ... + 16786.

It is an arithmetic number, because the mean of its divisors is an integer number (11415600).

Almost surely, 2^86891263 is an apocalyptic number.

86891263 is a deficient number, since it is larger than the sum of its proper divisors (4433537).

86891263 is a wasteful number, since it uses less digits than its factorization.

86891263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27341.

The product of its digits is 124416, while the sum is 43.

The square root of 86891263 is about 9321.5483155965. The cubic root of 86891263 is about 442.9200802925.

The spelling of 86891263 in words is "eighty-six million, eight hundred ninety-one thousand, two hundred sixty-three".