699888996 has 18 divisors (see below), whose sum is σ = 1769163942. Its totient is φ = 233296320.

The previous prime is 699888991. The next prime is 699889007.

699888996 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 651780900 + 48108096 = 25530^2 + 6936^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (699888991) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 9720645 + ... + 9720716.

Almost surely, 2^699888996 is an apocalyptic number.

It is an amenable number.

699888996 is an abundant number, since it is smaller than the sum of its proper divisors (1069274946).

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

699888996 is a wasteful number, since it uses less digits than its factorization.

699888996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19441371 (or 19441366 counting only the distinct ones).

The product of its digits is 120932352, while the sum is 72.

The square root of 699888996 is about 26455.4152490563. The cubic root of 699888996 is about 887.8570655016.

The spelling of 699888996 in words is "six hundred ninety-nine million, eight hundred eighty-eight thousand, nine hundred ninety-six".