86938617 has 4 divisors (see below), whose sum is σ = 115918160. Its totient is φ = 57959076.

The previous prime is 86938609. The next prime is 86938627. The reversal of 86938617 is 71683968.

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 86938617 - 2³ = 86938609 is a prime.

It is a super-3 number, since 3×86938617³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86938627) 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, 14489767 + ... + 14489772.

It is an arithmetic number, because the mean of its divisors is an integer number (28979540).

Almost surely, 2^86938617 is an apocalyptic number.

It is an amenable number.

86938617 is a deficient number, since it is larger than the sum of its proper divisors (28979543).

86938617 is a wasteful number, since it uses less digits than its factorization.

86938617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28979542.

The product of its digits is 435456, while the sum is 48.

The square root of 86938617 is about 9324.0879982977. The cubic root of 86938617 is about 443.0005265413. Note that the first 3 decimals are identical.

The spelling of 86938617 in words is "eighty-six million, nine hundred thirty-eight thousand, six hundred seventeen".