699999985 has 8 divisors (see below), whose sum is σ = 840314880. Its totient is φ = 559790064.

The previous prime is 699999953. The next prime is 700000001. The reversal of 699999985 is 589999996.

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

It is a cyclic number.

It is not a de Polignac number, because 699999985 - 2⁵ = 699999953 is a prime.

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, 10737 + ... + 38926.

It is an arithmetic number, because the mean of its divisors is an integer number (105039360).

Almost surely, 2^699999985 is an apocalyptic number.

It is an amenable number.

699999985 is a deficient number, since it is larger than the sum of its proper divisors (140314895).

699999985 is a wasteful number, since it uses less digits than its factorization.

699999985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52487.

The product of its digits is 127545840, while the sum is 73.

The square root of 699999985 is about 26457.5128271725. The cubic root of 699999985 is about 887.9039954004.

The spelling of 699999985 in words is "six hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-five".