85660977 has 8 divisors (see below), whose sum is σ = 120933216. Its totient is φ = 53748032.

The previous prime is 85660969. The next prime is 85660997. The reversal of 85660977 is 77906658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85660977 - 2³ = 85660969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85660937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839763 + ... + 839864.

It is an arithmetic number, because the mean of its divisors is an integer number (15116652).

Almost surely, 2^85660977 is an apocalyptic number.

It is an amenable number.

85660977 is a deficient number, since it is larger than the sum of its proper divisors (35272239).

85660977 is a wasteful number, since it uses less digits than its factorization.

85660977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679647.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 85660977 is about 9255.3215503298. The cubic root of 85660977 is about 440.8197133293.

The spelling of 85660977 in words is "eighty-five million, six hundred sixty thousand, nine hundred seventy-seven".