85660377 has 12 divisors (see below), whose sum is σ = 125541360. Its totient is φ = 51915160.

The previous prime is 85660373. The next prime is 85660381. The reversal of 85660377 is 77306658.

It is an interprime number because it is at equal distance from previous prime (85660373) and next prime (85660381).

It is not a de Polignac number, because 85660377 - 2² = 85660373 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (85660373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117627 + ... + 118352.

It is an arithmetic number, because the mean of its divisors is an integer number (10461780).

Almost surely, 2^85660377 is an apocalyptic number.

It is an amenable number.

85660377 is a deficient number, since it is larger than the sum of its proper divisors (39880983).

85660377 is a wasteful number, since it uses less digits than its factorization.

85660377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236004 (or 235993 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 85660377 is about 9255.2891364884. The cubic root of 85660377 is about 440.8186841075.

The spelling of 85660377 in words is "eighty-five million, six hundred sixty thousand, three hundred seventy-seven".