86196881 has 2 divisors, whose sum is σ = 86196882. Its totient is φ = 86196880.

The previous prime is 86196871. The next prime is 86196931. The reversal of 86196881 is 18869168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86192656 + 4225 = 9284^2 + 65^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86196881 is a prime.

It is a super-2 number, since 2×86196881² = 14859804588256322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86196871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43098440 + 43098441.

It is an arithmetic number, because the mean of its divisors is an integer number (43098441).

Almost surely, 2^86196881 is an apocalyptic number.

It is an amenable number.

86196881 is a deficient number, since it is larger than the sum of its proper divisors (1).

86196881 is an equidigital number, since it uses as much as digits as its factorization.

86196881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 47.

The square root of 86196881 is about 9284.2275392194. The cubic root of 86196881 is about 441.7370743022.

The spelling of 86196881 in words is "eighty-six million, one hundred ninety-six thousand, eight hundred eighty-one".