86899081 has 4 divisors (see below), whose sum is σ = 87087232. Its totient is φ = 86710932.

The previous prime is 86899061. The next prime is 86899093. The reversal of 86899081 is 18099868.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86899081 - 2⁹ = 86898569 is a prime.

It is a super-2 number, since 2×86899081² = 15102900557289122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86899061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93381 + ... + 94306.

It is an arithmetic number, because the mean of its divisors is an integer number (21771808).

Almost surely, 2^86899081 is an apocalyptic number.

It is an amenable number.

86899081 is a deficient number, since it is larger than the sum of its proper divisors (188151).

86899081 is a wasteful number, since it uses less digits than its factorization.

86899081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188150.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 86899081 is about 9321.9676570990. The cubic root of 86899081 is about 442.9333637352.

The spelling of 86899081 in words is "eighty-six million, eight hundred ninety-nine thousand, eighty-one".