313698289 has 2 divisors, whose sum is σ = 313698290. Its totient is φ = 313698288.

The previous prime is 313698271. The next prime is 313698317. The reversal of 313698289 is 982896313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276390625 + 37307664 = 16625^2 + 6108^2 .

It is a cyclic number.

It is not a de Polignac number, because 313698289 - 2¹⁷ = 313567217 is a prime.

It is not a weakly prime, because it can be changed into another prime (313698239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156849144 + 156849145.

It is an arithmetic number, because the mean of its divisors is an integer number (156849145).

Almost surely, 2^313698289 is an apocalyptic number.

It is an amenable number.

313698289 is a deficient number, since it is larger than the sum of its proper divisors (1).

313698289 is an equidigital number, since it uses as much as digits as its factorization.

313698289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 313698289 is about 17711.5298322872. The cubic root of 313698289 is about 679.4706729863.

The spelling of 313698289 in words is "three hundred thirteen million, six hundred ninety-eight thousand, two hundred eighty-nine".