813260347 has 2 divisors, whose sum is σ = 813260348. Its totient is φ = 813260346.

The previous prime is 813260339. The next prime is 813260351. The reversal of 813260347 is 743062318.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813260347 - 2³ = 813260339 is a prime.

It is a super-2 number, since 2×813260347² = 1322784784005120818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (813260377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406630173 + 406630174.

It is an arithmetic number, because the mean of its divisors is an integer number (406630174).

Almost surely, 2^813260347 is an apocalyptic number.

813260347 is a deficient number, since it is larger than the sum of its proper divisors (1).

813260347 is an equidigital number, since it uses as much as digits as its factorization.

813260347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 813260347 is about 28517.7198772973. The cubic root of 813260347 is about 933.4187757522.

The spelling of 813260347 in words is "eight hundred thirteen million, two hundred sixty thousand, three hundred forty-seven".