86261875 has 20 divisors (see below), whose sum is σ = 123198064. Its totient is φ = 59148000.

The previous prime is 86261867. The next prime is 86261969. The reversal of 86261875 is 57816268.

It is not a de Polignac number, because 86261875 - 2³ = 86261867 is a prime.

It is a super-2 number, since 2×86261875² = 14882222157031250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5484 + ... + 14233.

Almost surely, 2^86261875 is an apocalyptic number.

86261875 is a deficient number, since it is larger than the sum of its proper divisors (36936189).

86261875 is an equidigital number, since it uses as much as digits as its factorization.

86261875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19744 (or 19729 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 86261875 is about 9287.7271170077. The cubic root of 86261875 is about 441.8480723107.

It can be divided in two parts, 8626 and 1875, that added together give a palindrome (10501).

The spelling of 86261875 in words is "eighty-six million, two hundred sixty-one thousand, eight hundred seventy-five".