313835921 has 8 divisors (see below), whose sum is σ = 358854144. Its totient is φ = 268863840.

The previous prime is 313835903. The next prime is 313836011. The reversal of 313835921 is 129538313.

It is a happy number.

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

It is not a de Polignac number, because 313835921 - 2⁶ = 313835857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313832921) 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, 4541 + ... + 25461.

It is an arithmetic number, because the mean of its divisors is an integer number (44856768).

Almost surely, 2^313835921 is an apocalyptic number.

It is an amenable number.

313835921 is a deficient number, since it is larger than the sum of its proper divisors (45018223).

313835921 is a wasteful number, since it uses less digits than its factorization.

313835921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23071.

The product of its digits is 19440, while the sum is 35.

The square root of 313835921 is about 17715.4147848703. The cubic root of 313835921 is about 679.5700287875.

The spelling of 313835921 in words is "three hundred thirteen million, eight hundred thirty-five thousand, nine hundred twenty-one".