85609868 has 6 divisors (see below), whose sum is σ = 149817276. Its totient is φ = 42804932.

The previous prime is 85609859. The next prime is 85609871. The reversal of 85609868 is 86890658.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10701230 + ... + 10701237.

It is an arithmetic number, because the mean of its divisors is an integer number (24969546).

Almost surely, 2^85609868 is an apocalyptic number.

It is an amenable number.

85609868 is a deficient number, since it is larger than the sum of its proper divisors (64207408).

85609868 is a wasteful number, since it uses less digits than its factorization.

85609868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402471 (or 21402469 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The square root of 85609868 is about 9252.5600781622. The cubic root of 85609868 is about 440.7320252604.

The spelling of 85609868 in words is "eighty-five million, six hundred nine thousand, eight hundred sixty-eight".