85602971 has 4 divisors (see below), whose sum is σ = 85761744. Its totient is φ = 85444200.

The previous prime is 85602967. The next prime is 85602977. The reversal of 85602971 is 17920658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85602971 - 2² = 85602967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85602977) 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 3 ways as a sum of consecutive naturals, for example, 78575 + ... + 79656.

It is an arithmetic number, because the mean of its divisors is an integer number (21440436).

Almost surely, 2^85602971 is an apocalyptic number.

85602971 is a deficient number, since it is larger than the sum of its proper divisors (158773).

85602971 is a wasteful number, since it uses less digits than its factorization.

85602971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158772.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 85602971 is about 9252.1873629969. The cubic root of 85602971 is about 440.7201893569.

The spelling of 85602971 in words is "eighty-five million, six hundred two thousand, nine hundred seventy-one".