86495869 has 2 divisors, whose sum is σ = 86495870. Its totient is φ = 86495868.

The previous prime is 86495867. The next prime is 86495887. The reversal of 86495869 is 96859468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 27436644 = 7685^2 + 5238^2 .

It is a cyclic number.

It is not a de Polignac number, because 86495869 - 2¹ = 86495867 is a prime.

It is a super-2 number, since 2×86495869² = 14963070708130322, which contains 22 as substring.

Together with 86495867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86495867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43247934 + 43247935.

It is an arithmetic number, because the mean of its divisors is an integer number (43247935).

Almost surely, 2^86495869 is an apocalyptic number.

It is an amenable number.

86495869 is a deficient number, since it is larger than the sum of its proper divisors (1).

86495869 is an equidigital number, since it uses as much as digits as its factorization.

86495869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 55.

The square root of 86495869 is about 9300.3155322817. The cubic root of 86495869 is about 442.2472307006.

The spelling of 86495869 in words is "eighty-six million, four hundred ninety-five thousand, eight hundred sixty-nine".