314638439 has 4 divisors (see below), whose sum is σ = 321955656. Its totient is φ = 307321224.

The previous prime is 314638409. The next prime is 314638451. The reversal of 314638439 is 934836413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-314638439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 314638396 and 314638405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314638409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3658544 + ... + 3658629.

It is an arithmetic number, because the mean of its divisors is an integer number (80488914).

Almost surely, 2^314638439 is an apocalyptic number.

314638439 is a deficient number, since it is larger than the sum of its proper divisors (7317217).

314638439 is an equidigital number, since it uses as much as digits as its factorization.

314638439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317216.

The product of its digits is 186624, while the sum is 41.

The square root of 314638439 is about 17738.0505975149. The cubic root of 314638439 is about 680.1487844850.

The spelling of 314638439 in words is "three hundred fourteen million, six hundred thirty-eight thousand, four hundred thirty-nine".