699981995 has 4 divisors (see below), whose sum is σ = 839978400. Its totient is φ = 559985592.

The previous prime is 699981941. The next prime is 699982001. The reversal of 699981995 is 599189996.

699981995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 699981995 - 2¹⁰ = 699980971 is a prime.

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, 69998195 + ... + 69998204.

It is an arithmetic number, because the mean of its divisors is an integer number (209994600).

Almost surely, 2^699981995 is an apocalyptic number.

699981995 is a deficient number, since it is larger than the sum of its proper divisors (139996405).

699981995 is a wasteful number, since it uses less digits than its factorization.

699981995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139996404.

The product of its digits is 14171760, while the sum is 65.

The square root of 699981995 is about 26457.1728459410. The cubic root of 699981995 is about 887.8963889575.

The spelling of 699981995 in words is "six hundred ninety-nine million, nine hundred eighty-one thousand, nine hundred ninety-five".