313937421 has 8 divisors (see below), whose sum is σ = 478380864. Its totient is φ = 179392800.

The previous prime is 313937417. The next prime is 313937423. The reversal of 313937421 is 124739313.

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

It is not a de Polignac number, because 313937421 - 2² = 313937417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313937423) 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, 7474680 + ... + 7474721.

It is an arithmetic number, because the mean of its divisors is an integer number (59797608).

Almost surely, 2^313937421 is an apocalyptic number.

It is an amenable number.

313937421 is a deficient number, since it is larger than the sum of its proper divisors (164443443).

313937421 is a wasteful number, since it uses less digits than its factorization.

313937421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14949411.

The product of its digits is 13608, while the sum is 33.

The square root of 313937421 is about 17718.2792900439. The cubic root of 313937421 is about 679.6432824832.

The spelling of 313937421 in words is "three hundred thirteen million, nine hundred thirty-seven thousand, four hundred twenty-one".