699739164 has 72 divisors (see below), whose sum is σ = 1806058800. Its totient is φ = 228379392.

The previous prime is 699739133. The next prime is 699739177. The reversal of 699739164 is 461937996.

It is a self number, because there is not a number n which added to its sum of digits gives 699739164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390679 + ... + 392465.

It is an arithmetic number, because the mean of its divisors is an integer number (25084150).

Almost surely, 2^699739164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699739164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903029400).

699739164 is an abundant number, since it is smaller than the sum of its proper divisors (1106319636).

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

699739164 is a wasteful number, since it uses less digits than its factorization.

699739164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019 (or 2014 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 699739164 is about 26452.5833143003. The cubic root of 699739164 is about 887.7937035996.

The spelling of 699739164 in words is "six hundred ninety-nine million, seven hundred thirty-nine thousand, one hundred sixty-four".