313921947 has 8 divisors (see below), whose sum is σ = 418674960. Its totient is φ = 209225120.

The previous prime is 313921943. The next prime is 313921961. The reversal of 313921947 is 749129313.

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

It is a cyclic number.

It is not a de Polignac number, because 313921947 - 2² = 313921943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313921943) 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, 1429 + ... + 25097.

It is an arithmetic number, because the mean of its divisors is an integer number (52334370).

Almost surely, 2^313921947 is an apocalyptic number.

313921947 is a deficient number, since it is larger than the sum of its proper divisors (104753013).

313921947 is a wasteful number, since it uses less digits than its factorization.

313921947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28093.

The product of its digits is 40824, while the sum is 39.

The square root of 313921947 is about 17717.8426169779. The cubic root of 313921947 is about 679.6321157429.

The spelling of 313921947 in words is "three hundred thirteen million, nine hundred twenty-one thousand, nine hundred forty-seven".