314391921 has 8 divisors (see below), whose sum is σ = 421384704. Its totient is φ = 208496880.

The previous prime is 314391901. The next prime is 314391967. The reversal of 314391921 is 129193413.

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 314391921 - 2¹⁰ = 314390897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (314391901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273766 + ... + 274911.

It is an arithmetic number, because the mean of its divisors is an integer number (52673088).

Almost surely, 2^314391921 is an apocalyptic number.

It is an amenable number.

314391921 is a deficient number, since it is larger than the sum of its proper divisors (106992783).

314391921 is a wasteful number, since it uses less digits than its factorization.

314391921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548871.

The product of its digits is 5832, while the sum is 33.

The square root of 314391921 is about 17731.1003888648. The cubic root of 314391921 is about 679.9711067597.

The spelling of 314391921 in words is "three hundred fourteen million, three hundred ninety-one thousand, nine hundred twenty-one".