86340217 has 4 divisors (see below), whose sum is σ = 86455936. Its totient is φ = 86224500.

The previous prime is 86340211. The next prime is 86340223. The reversal of 86340217 is 71204368.

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 an interprime number because it is at equal distance from previous prime (86340211) and next prime (86340223).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86340217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86340211) 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, 56733 + ... + 58234.

It is an arithmetic number, because the mean of its divisors is an integer number (21613984).

Almost surely, 2^86340217 is an apocalyptic number.

It is an amenable number.

86340217 is a deficient number, since it is larger than the sum of its proper divisors (115719).

86340217 is a wasteful number, since it uses less digits than its factorization.

86340217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115718.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 86340217 is about 9291.9436610432. The cubic root of 86340217 is about 441.9817922108.

The spelling of 86340217 in words is "eighty-six million, three hundred forty thousand, two hundred seventeen".