85688418 has 16 divisors (see below), whose sum is σ = 171534816. Its totient is φ = 28536480.

The previous prime is 85688389. The next prime is 85688443. The reversal of 85688418 is 81488658.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173 + ... + 13143.

It is an arithmetic number, because the mean of its divisors is an integer number (10720926).

Almost surely, 2^85688418 is an apocalyptic number.

85688418 is an abundant number, since it is smaller than the sum of its proper divisors (85846398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85688418 is a wasteful number, since it uses less digits than its factorization.

85688418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13169.

The product of its digits is 491520, while the sum is 48.

The square root of 85688418 is about 9256.8038760687. The cubic root of 85688418 is about 440.8667796549.

The spelling of 85688418 in words is "eighty-five million, six hundred eighty-eight thousand, four hundred eighteen".