313441789 has 2 divisors, whose sum is σ = 313441790. Its totient is φ = 313441788.

The previous prime is 313441787. The next prime is 313441811. The reversal of 313441789 is 987144313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199656900 + 113784889 = 14130^2 + 10667^2 .

It is a cyclic number.

It is not a de Polignac number, because 313441789 - 2¹ = 313441787 is a prime.

Together with 313441787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313441787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156720894 + 156720895.

It is an arithmetic number, because the mean of its divisors is an integer number (156720895).

Almost surely, 2^313441789 is an apocalyptic number.

It is an amenable number.

313441789 is a deficient number, since it is larger than the sum of its proper divisors (1).

313441789 is an equidigital number, since it uses as much as digits as its factorization.

313441789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 313441789 is about 17704.2873056218. The cubic root of 313441789 is about 679.2854294393.

It can be divided in two parts, 31344 and 1789, that added together give a palindrome (33133).

The spelling of 313441789 in words is "three hundred thirteen million, four hundred forty-one thousand, seven hundred eighty-nine".