313978223 has 8 divisors (see below), whose sum is σ = 338368128. Its totient is φ = 289622304.

The previous prime is 313978213. The next prime is 313978243. The reversal of 313978223 is 322879313.

It is a happy number.

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 313978223 - 2⁴ = 313978207 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 (313978213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12665 + ... + 28077.

It is an arithmetic number, because the mean of its divisors is an integer number (42296016).

Almost surely, 2^313978223 is an apocalyptic number.

313978223 is a deficient number, since it is larger than the sum of its proper divisors (24389905).

313978223 is a wasteful number, since it uses less digits than its factorization.

313978223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16993.

The product of its digits is 54432, while the sum is 38.

The square root of 313978223 is about 17719.4306624113. The cubic root of 313978223 is about 679.6727252979.

The spelling of 313978223 in words is "three hundred thirteen million, nine hundred seventy-eight thousand, two hundred twenty-three".