86598081 has 6 divisors (see below), whose sum is σ = 125086130. Its totient is φ = 57732048.

The previous prime is 86598077. The next prime is 86598121. The reversal of 86598081 is 18089568.

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 5760000 = 8991^2 + 2400^2 .

It is not a de Polignac number, because 86598081 - 2² = 86598077 is a prime.

It is a super-2 number, since 2×86598081² = 14998455265765122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86598041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4810996 + ... + 4811013.

Almost surely, 2^86598081 is an apocalyptic number.

It is an amenable number.

86598081 is a deficient number, since it is larger than the sum of its proper divisors (38488049).

86598081 is a wasteful number, since it uses less digits than its factorization.

86598081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9622015 (or 9622012 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 86598081 is about 9305.8089922371. The cubic root of 86598081 is about 442.4213630251.

The spelling of 86598081 in words is "eighty-six million, five hundred ninety-eight thousand, eighty-one".