314431993 has 8 divisors (see below), whose sum is σ = 322360416. Its totient is φ = 306516000.

The previous prime is 314431991. The next prime is 314432009. The reversal of 314431993 is 399134413.

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

It is not a de Polignac number, because 314431993 - 2¹ = 314431991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (314431991) 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, 68418 + ... + 72868.

It is an arithmetic number, because the mean of its divisors is an integer number (40295052).

Almost surely, 2^314431993 is an apocalyptic number.

It is an amenable number.

314431993 is a deficient number, since it is larger than the sum of its proper divisors (7928423).

314431993 is a wasteful number, since it uses less digits than its factorization.

314431993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6215.

The product of its digits is 34992, while the sum is 37.

The square root of 314431993 is about 17732.2303447705. The cubic root of 314431993 is about 679.9999949539. Note that the first 5 decimals are identical.

The spelling of 314431993 in words is "three hundred fourteen million, four hundred thirty-one thousand, nine hundred ninety-three".