85867597 has 4 divisors (see below), whose sum is σ = 87323040. Its totient is φ = 84412156.

The previous prime is 85867591. The next prime is 85867609. The reversal of 85867597 is 79576858.

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 not a de Polignac number, because 85867597 - 2³ = 85867589 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 (85867591) 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, 727633 + ... + 727750.

It is an arithmetic number, because the mean of its divisors is an integer number (21830760).

Almost surely, 2^85867597 is an apocalyptic number.

It is an amenable number.

85867597 is a deficient number, since it is larger than the sum of its proper divisors (1455443).

85867597 is a wasteful number, since it uses less digits than its factorization.

85867597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455442.

The product of its digits is 4233600, while the sum is 55.

The square root of 85867597 is about 9266.4770544150. The cubic root of 85867597 is about 441.1738576093.

The spelling of 85867597 in words is "eighty-five million, eight hundred sixty-seven thousand, five hundred ninety-seven".