86670617 has 4 divisors (see below), whose sum is σ = 94549776. Its totient is φ = 78791460.

The previous prime is 86670599. The next prime is 86670667. The reversal of 86670617 is 71607668.

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 not a de Polignac number, because 86670617 - 2⁶ = 86670553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86670667) 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, 3939563 + ... + 3939584.

It is an arithmetic number, because the mean of its divisors is an integer number (23637444).

Almost surely, 2^86670617 is an apocalyptic number.

It is an amenable number.

86670617 is a deficient number, since it is larger than the sum of its proper divisors (7879159).

86670617 is a wasteful number, since it uses less digits than its factorization.

86670617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879158.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 86670617 is about 9309.7055270293. The cubic root of 86670617 is about 442.5448550613.

The spelling of 86670617 in words is "eighty-six million, six hundred seventy thousand, six hundred seventeen".