85856677 has 4 divisors (see below), whose sum is σ = 89589600. Its totient is φ = 82123756.

The previous prime is 85856671. The next prime is 85856689. The reversal of 85856677 is 77665858.

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-85856677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85856671) 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, 1866427 + ... + 1866472.

It is an arithmetic number, because the mean of its divisors is an integer number (22397400).

Almost surely, 2^85856677 is an apocalyptic number.

It is an amenable number.

85856677 is a deficient number, since it is larger than the sum of its proper divisors (3732923).

85856677 is a wasteful number, since it uses less digits than its factorization.

85856677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732922.

The product of its digits is 2822400, while the sum is 52.

The square root of 85856677 is about 9265.8878149911. The cubic root of 85856677 is about 441.1551550838.

The spelling of 85856677 in words is "eighty-five million, eight hundred fifty-six thousand, six hundred seventy-seven".