313523893 has 2 divisors, whose sum is σ = 313523894. Its totient is φ = 313523892.

The previous prime is 313523851. The next prime is 313523909. The reversal of 313523893 is 398325313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297976644 + 15547249 = 17262^2 + 3943^2 .

It is a cyclic number.

It is not a de Polignac number, because 313523893 - 2⁹ = 313523381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313521893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156761946 + 156761947.

It is an arithmetic number, because the mean of its divisors is an integer number (156761947).

Almost surely, 2^313523893 is an apocalyptic number.

It is an amenable number.

313523893 is a deficient number, since it is larger than the sum of its proper divisors (1).

313523893 is an equidigital number, since it uses as much as digits as its factorization.

313523893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 313523893 is about 17706.6059141779. The cubic root of 313523893 is about 679.3447357006.

It can be divided in two parts, 31352 and 3893, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 313523893 in words is "three hundred thirteen million, five hundred twenty-three thousand, eight hundred ninety-three".