699689694 has 16 divisors (see below), whose sum is σ = 1526595840. Its totient is φ = 212027160.

The previous prime is 699689663. The next prime is 699689701. The reversal of 699689694 is 496986996.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 10601359 = 699689694 / (6 + 9 + 9 + 6 + 8 + 9 + 6 + 9 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5300614 + ... + 5300745.

It is an arithmetic number, because the mean of its divisors is an integer number (95412240).

Almost surely, 2^699689694 is an apocalyptic number.

699689694 is an abundant number, since it is smaller than the sum of its proper divisors (826906146).

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

699689694 is a wasteful number, since it uses less digits than its factorization.

699689694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601375.

The product of its digits is 45349632, while the sum is 66.

The square root of 699689694 is about 26451.6482284186. The cubic root of 699689694 is about 887.7727814275.

The spelling of 699689694 in words is "six hundred ninety-nine million, six hundred eighty-nine thousand, six hundred ninety-four".