749347219 has 2 divisors, whose sum is σ = 749347220. Its totient is φ = 749347218.

The previous prime is 749347189. The next prime is 749347223. The reversal of 749347219 is 912743947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 749347219 - 2⁷ = 749347091 is a prime.

It is a super-2 number, since 2×749347219² = 1123042509246067922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (749347519) 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, 374673609 + 374673610.

It is an arithmetic number, because the mean of its divisors is an integer number (374673610).

Almost surely, 2^749347219 is an apocalyptic number.

749347219 is a deficient number, since it is larger than the sum of its proper divisors (1).

749347219 is an equidigital number, since it uses as much as digits as its factorization.

749347219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 749347219 is about 27374.2071848666. The cubic root of 749347219 is about 908.2966239483.

The spelling of 749347219 in words is "seven hundred forty-nine million, three hundred forty-seven thousand, two hundred nineteen".