86609099 has 4 divisors (see below), whose sum is σ = 90374736. Its totient is φ = 82843464.

The previous prime is 86609077. The next prime is 86609143. The reversal of 86609099 is 99090668.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86609099 - 2⁸ = 86608843 is a prime.

It is a super-2 number, since 2×86609099² = 15002272059183602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86609899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882784 + ... + 1882829.

It is an arithmetic number, because the mean of its divisors is an integer number (22593684).

Almost surely, 2^86609099 is an apocalyptic number.

86609099 is a deficient number, since it is larger than the sum of its proper divisors (3765637).

86609099 is a wasteful number, since it uses less digits than its factorization.

86609099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765636.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 86609099 is about 9306.4009692254. The cubic root of 86609099 is about 442.4401255343.

The spelling of 86609099 in words is "eighty-six million, six hundred nine thousand, ninety-nine".