313720417 has 2 divisors, whose sum is σ = 313720418. Its totient is φ = 313720416.

The previous prime is 313720411. The next prime is 313720423. The reversal of 313720417 is 714027313.

It is a balanced prime because it is at equal distance from previous prime (313720411) and next prime (313720423).

It can be written as a sum of positive squares in only one way, i.e., 255488256 + 58232161 = 15984^2 + 7631^2 .

It is a cyclic number.

It is not a de Polignac number, because 313720417 - 2¹¹ = 313718369 is a prime.

It is not a weakly prime, because it can be changed into another prime (313720411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156860208 + 156860209.

It is an arithmetic number, because the mean of its divisors is an integer number (156860209).

Almost surely, 2^313720417 is an apocalyptic number.

It is an amenable number.

313720417 is a deficient number, since it is larger than the sum of its proper divisors (1).

313720417 is an equidigital number, since it uses as much as digits as its factorization.

313720417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 313720417 is about 17712.1544991003. The cubic root of 313720417 is about 679.4866490309.

The spelling of 313720417 in words is "three hundred thirteen million, seven hundred twenty thousand, four hundred seventeen".