86468209 has 4 divisors (see below), whose sum is σ = 86524416. Its totient is φ = 86412004.

The previous prime is 86468197. The next prime is 86468219. The reversal of 86468209 is 90286468.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-86468209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86468219) 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, 25729 + ... + 28894.

It is an arithmetic number, because the mean of its divisors is an integer number (21631104).

Almost surely, 2^86468209 is an apocalyptic number.

It is an amenable number.

86468209 is a deficient number, since it is larger than the sum of its proper divisors (56207).

86468209 is a wasteful number, since it uses less digits than its factorization.

86468209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56206.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 86468209 is about 9298.8283670579. The cubic root of 86468209 is about 442.2000844700.

The spelling of 86468209 in words is "eighty-six million, four hundred sixty-eight thousand, two hundred nine".