313716749 has 4 divisors (see below), whose sum is σ = 314415900. Its totient is φ = 313017600.

The previous prime is 313716743. The next prime is 313716779. The reversal of 313716749 is 947617313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 947617313 = 443 ⋅2139091.

It can be written as a sum of positive squares in 2 ways, for example, as 253032649 + 60684100 = 15907^2 + 7790^2 .

It is a cyclic number.

It is not a de Polignac number, because 313716749 - 2¹⁶ = 313651213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313716743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348902 + ... + 349799.

It is an arithmetic number, because the mean of its divisors is an integer number (78603975).

Almost surely, 2^313716749 is an apocalyptic number.

It is an amenable number.

313716749 is a deficient number, since it is larger than the sum of its proper divisors (699151).

313716749 is an equidigital number, since it uses as much as digits as its factorization.

313716749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699150.

The product of its digits is 95256, while the sum is 41.

The square root of 313716749 is about 17712.0509540821. The cubic root of 313716749 is about 679.4840008484.

The spelling of 313716749 in words is "three hundred thirteen million, seven hundred sixteen thousand, seven hundred forty-nine".