86793817 has 4 divisors (see below), whose sum is σ = 94684176. Its totient is φ = 78903460.

The previous prime is 86793809. The next prime is 86793829. The reversal of 86793817 is 71839768.

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 86793817 - 2³ = 86793809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86793617) 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, 3945163 + ... + 3945184.

It is an arithmetic number, because the mean of its divisors is an integer number (23671044).

Almost surely, 2^86793817 is an apocalyptic number.

It is an amenable number.

86793817 is a deficient number, since it is larger than the sum of its proper divisors (7890359).

86793817 is a wasteful number, since it uses less digits than its factorization.

86793817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890358.

The product of its digits is 508032, while the sum is 49.

The square root of 86793817 is about 9316.3199279544. The cubic root of 86793817 is about 442.7544444037.

The spelling of 86793817 in words is "eighty-six million, seven hundred ninety-three thousand, eight hundred seventeen".