314785813 has 4 divisors (see below), whose sum is σ = 319219488. Its totient is φ = 310352140.

The previous prime is 314785789. The next prime is 314785817. The reversal of 314785813 is 318587413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318587413 = 5479 ⋅58147.

It is a cyclic number.

It is not a de Polignac number, because 314785813 - 2⁵ = 314785781 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 (314785817) 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, 2216731 + ... + 2216872.

It is an arithmetic number, because the mean of its divisors is an integer number (79804872).

Almost surely, 2^314785813 is an apocalyptic number.

It is an amenable number.

314785813 is a deficient number, since it is larger than the sum of its proper divisors (4433675).

314785813 is an equidigital number, since it uses as much as digits as its factorization.

314785813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433674.

The product of its digits is 80640, while the sum is 40.

The square root of 314785813 is about 17742.2042880810. The cubic root of 314785813 is about 680.2549599006.

The spelling of 314785813 in words is "three hundred fourteen million, seven hundred eighty-five thousand, eight hundred thirteen".