85986597 has 4 divisors (see below), whose sum is σ = 114648800. Its totient is φ = 57324396.

The previous prime is 85986587. The next prime is 85986599. The reversal of 85986597 is 79568958.

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 de Polignac number, because none of the positive numbers 2^k-85986597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85986599) 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, 14331097 + ... + 14331102.

It is an arithmetic number, because the mean of its divisors is an integer number (28662200).

Almost surely, 2^85986597 is an apocalyptic number.

It is an amenable number.

85986597 is a deficient number, since it is larger than the sum of its proper divisors (28662203).

85986597 is a wasteful number, since it uses less digits than its factorization.

85986597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28662202.

The product of its digits is 5443200, while the sum is 57.

The square root of 85986597 is about 9272.8958260082. The cubic root of 85986597 is about 441.3775644682.

The spelling of 85986597 in words is "eighty-five million, nine hundred eighty-six thousand, five hundred ninety-seven".