699958799 has 4 divisors (see below), whose sum is σ = 741132864. Its totient is φ = 658784736.

The previous prime is 699958729. The next prime is 699958823. The reversal of 699958799 is 997859996.

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 699958799 - 2⁸ = 699958543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699958709) 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, 20587007 + ... + 20587040.

It is an arithmetic number, because the mean of its divisors is an integer number (185283216).

Almost surely, 2^699958799 is an apocalyptic number.

699958799 is a deficient number, since it is larger than the sum of its proper divisors (41174065).

699958799 is a wasteful number, since it uses less digits than its factorization.

699958799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41174064.

The product of its digits is 99202320, while the sum is 71.

The square root of 699958799 is about 26456.7344734757. The cubic root of 699958799 is about 887.8865811471.

The spelling of 699958799 in words is "six hundred ninety-nine million, nine hundred fifty-eight thousand, seven hundred ninety-nine".