86697009 has 24 divisors (see below), whose sum is σ = 143928512. Its totient is φ = 49260960.

The previous prime is 86696977. The next prime is 86697053. The reversal of 86697009 is 90079668.

It is not a de Polignac number, because 86697009 - 2⁵ = 86696977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86697109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7602 + ... + 15204.

Almost surely, 2^86697009 is an apocalyptic number.

It is an amenable number.

86697009 is a deficient number, since it is larger than the sum of its proper divisors (57231503).

86697009 is a wasteful number, since it uses less digits than its factorization.

86697009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797 (or 7794 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 86697009 is about 9311.1228646173. The cubic root of 86697009 is about 442.5897701620.

The spelling of 86697009 in words is "eighty-six million, six hundred ninety-seven thousand, nine".