85664918 has 8 divisors (see below), whose sum is σ = 128537280. Its totient is φ = 42819160.

The previous prime is 85664899. The next prime is 85664951. The reversal of 85664918 is 81946658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7028 + ... + 14856.

It is an arithmetic number, because the mean of its divisors is an integer number (16067160).

Almost surely, 2^85664918 is an apocalyptic number.

85664918 is a deficient number, since it is larger than the sum of its proper divisors (42872362).

85664918 is a wasteful number, since it uses less digits than its factorization.

85664918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13302.

The product of its digits is 414720, while the sum is 47.

The square root of 85664918 is about 9255.5344524236. The cubic root of 85664918 is about 440.8264734820.

The spelling of 85664918 in words is "eighty-five million, six hundred sixty-four thousand, nine hundred eighteen".