86816655 has 24 divisors (see below), whose sum is σ = 152393280. Its totient is φ = 45714240.

The previous prime is 86816629. The next prime is 86816677. The reversal of 86816655 is 55661868.

It is not a de Polignac number, because 86816655 - 2⁹ = 86816143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86816655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8656 + ... + 15765.

It is an arithmetic number, because the mean of its divisors is an integer number (6349720).

Almost surely, 2^86816655 is an apocalyptic number.

86816655 is a deficient number, since it is larger than the sum of its proper divisors (65576625).

86816655 is a wasteful number, since it uses less digits than its factorization.

86816655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24511 (or 24508 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 86816655 is about 9317.5455459042. The cubic root of 86816655 is about 442.7932748934.

The spelling of 86816655 in words is "eighty-six million, eight hundred sixteen thousand, six hundred fifty-five".