699959 has 8 divisors (see below), whose sum is σ = 786912. Its totient is φ = 617760.

The previous prime is 699953. The next prime is 699961. The reversal of 699959 is 959996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 699959 - 2⁴ = 699943 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 (699953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (98364).

2⁶⁹⁹⁹⁵⁹ is an apocalyptic number.

699959 is a deficient number, since it is larger than the sum of its proper divisors (86953).

699959 is a wasteful number, since it uses less digits than its factorization.

699959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377.

The product of its digits is 196830, while the sum is 47.

The square root of 699959 is about 836.6355239888. The cubic root of 699959 is about 88.7886666136.

The spelling of 699959 in words is "six hundred ninety-nine thousand, nine hundred fifty-nine".