85456869 has 16 divisors (see below), whose sum is σ = 115088640. Its totient is φ = 56401920.

The previous prime is 85456859. The next prime is 85456871. The reversal of 85456869 is 96865458.

It is not a de Polignac number, because 85456869 - 2⁵ = 85456837 is a prime.

It is a super-2 number, since 2×85456869² = 14605752918566322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85456859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208737 + ... + 209145.

It is an arithmetic number, because the mean of its divisors is an integer number (7193040).

Almost surely, 2^85456869 is an apocalyptic number.

It is an amenable number.

85456869 is a deficient number, since it is larger than the sum of its proper divisors (29631771).

85456869 is a wasteful number, since it uses less digits than its factorization.

85456869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940.

The product of its digits is 2073600, while the sum is 51.

The square root of 85456869 is about 9244.2884528773. The cubic root of 85456869 is about 440.4693150102.

The spelling of 85456869 in words is "eighty-five million, four hundred fifty-six thousand, eight hundred sixty-nine".