1347434993 has 2 divisors, whose sum is σ = 1347434994. Its totient is φ = 1347434992.

The previous prime is 1347434929. The next prime is 1347435007. The reversal of 1347434993 is 3994347431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1146702769 + 200732224 = 33863^2 + 14168^2 .

It is a cyclic number.

It is not a de Polignac number, because 1347434993 - 2⁶ = 1347434929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1347430993) 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 as a sum of consecutive naturals, namely, 673717496 + 673717497.

It is an arithmetic number, because the mean of its divisors is an integer number (673717497).

Almost surely, 2^1347434993 is an apocalyptic number.

It is an amenable number.

1347434993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347434993 is an equidigital number, since it uses as much as digits as its factorization.

1347434993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 47.

The square root of 1347434993 is about 36707.4242218110. The cubic root of 1347434993 is about 1104.5090379144.

The spelling of 1347434993 in words is "one billion, three hundred forty-seven million, four hundred thirty-four thousand, nine hundred ninety-three".