699680159 has 4 divisors (see below), whose sum is σ = 700050120. Its totient is φ = 699310200.

The previous prime is 699680153. The next prime is 699680173. The reversal of 699680159 is 951086996.

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 699680159 - 2¹² = 699676063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 699680159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699680153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182129 + ... + 185930.

It is an arithmetic number, because the mean of its divisors is an integer number (175012530).

Almost surely, 2^699680159 is an apocalyptic number.

699680159 is a deficient number, since it is larger than the sum of its proper divisors (369961).

699680159 is a wasteful number, since it uses less digits than its factorization.

699680159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369960.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 699680159 is about 26451.4679932891. The cubic root of 699680159 is about 887.7687487104.

The spelling of 699680159 in words is "six hundred ninety-nine million, six hundred eighty thousand, one hundred fifty-nine".