85660929 has 8 divisors (see below), whose sum is σ = 126905120. Its totient is φ = 57107268.

The previous prime is 85660921. The next prime is 85660937. The reversal of 85660929 is 92906658.

It is an interprime number because it is at equal distance from previous prime (85660921) and next prime (85660937).

It is not a de Polignac number, because 85660929 - 2³ = 85660921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85660921) 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, 1586287 + ... + 1586340.

It is an arithmetic number, because the mean of its divisors is an integer number (15863140).

Almost surely, 2^85660929 is an apocalyptic number.

It is an amenable number.

85660929 is a deficient number, since it is larger than the sum of its proper divisors (41244191).

85660929 is a wasteful number, since it uses less digits than its factorization.

85660929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172636 (or 3172630 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 85660929 is about 9255.3189572267. The cubic root of 85660929 is about 440.8196309918.

The spelling of 85660929 in words is "eighty-five million, six hundred sixty thousand, nine hundred twenty-nine".