313694729 has 2 divisors, whose sum is σ = 313694730. Its totient is φ = 313694728.

The previous prime is 313694713. The next prime is 313694741. The reversal of 313694729 is 927496313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159264400 + 154430329 = 12620^2 + 12427^2 .

It is an emirp because it is prime and its reverse (927496313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313694729 - 2⁴ = 313694713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313694729.

It is not a weakly prime, because it can be changed into another prime (313694629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156847364 + 156847365.

It is an arithmetic number, because the mean of its divisors is an integer number (156847365).

Almost surely, 2^313694729 is an apocalyptic number.

It is an amenable number.

313694729 is a deficient number, since it is larger than the sum of its proper divisors (1).

313694729 is an equidigital number, since it uses as much as digits as its factorization.

313694729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 44.

The square root of 313694729 is about 17711.4293324960. The cubic root of 313694729 is about 679.4681026559.

The spelling of 313694729 in words is "three hundred thirteen million, six hundred ninety-four thousand, seven hundred twenty-nine".