313869863 has 2 divisors, whose sum is σ = 313869864. Its totient is φ = 313869862.

The previous prime is 313869833. The next prime is 313869887. The reversal of 313869863 is 368968313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313869863 - 2¹⁰ = 313868839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313869833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156934931 + 156934932.

It is an arithmetic number, because the mean of its divisors is an integer number (156934932).

Almost surely, 2^313869863 is an apocalyptic number.

313869863 is a deficient number, since it is larger than the sum of its proper divisors (1).

313869863 is an equidigital number, since it uses as much as digits as its factorization.

313869863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 47.

The square root of 313869863 is about 17716.3727382328. The cubic root of 313869863 is about 679.5945268695.

The spelling of 313869863 in words is "three hundred thirteen million, eight hundred sixty-nine thousand, eight hundred sixty-three".