7813369 has 2 divisors, whose sum is σ = 7813370. Its totient is φ = 7813368.

The previous prime is 7813367. The next prime is 7813397. The reversal of 7813369 is 9633187.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 3861225 = 1988^2 + 1965^2 .

It is an emirp because it is prime and its reverse (9633187) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7813369 - 2¹ = 7813367 is a prime.

It is a super-2 number, since 2×7813369² = 122097470260322, which contains 22 as substring.

Together with 7813367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7813361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3906684 + 3906685.

It is an arithmetic number, because the mean of its divisors is an integer number (3906685).

Almost surely, 2^7813369 is an apocalyptic number.

It is an amenable number.

7813369 is a deficient number, since it is larger than the sum of its proper divisors (1).

7813369 is an equidigital number, since it uses as much as digits as its factorization.

7813369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 7813369 is about 2795.2404189980. The cubic root of 7813369 is about 198.4324882980.

The spelling of 7813369 in words is "seven million, eight hundred thirteen thousand, three hundred sixty-nine".