321699713 has 4 divisors (see below), whose sum is σ = 324155568. Its totient is φ = 319243860.

The previous prime is 321699661. The next prime is 321699737. The reversal of 321699713 is 317996123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321699713 - 2⁶ = 321699649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321699113) 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, 1227731 + ... + 1227992.

It is an arithmetic number, because the mean of its divisors is an integer number (81038892).

Almost surely, 2^321699713 is an apocalyptic number.

It is an amenable number.

321699713 is a deficient number, since it is larger than the sum of its proper divisors (2455855).

321699713 is a wasteful number, since it uses less digits than its factorization.

321699713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455854.

The product of its digits is 61236, while the sum is 41.

The square root of 321699713 is about 17935.9893231458. The cubic root of 321699713 is about 685.1992692856.

The spelling of 321699713 in words is "three hundred twenty-one million, six hundred ninety-nine thousand, seven hundred thirteen".