749374391 has 2 divisors, whose sum is σ = 749374392. Its totient is φ = 749374390.

The previous prime is 749374361. The next prime is 749374397. The reversal of 749374391 is 193473947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 749374391 - 2²⁶ = 682265527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749374397) 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, 374687195 + 374687196.

It is an arithmetic number, because the mean of its divisors is an integer number (374687196).

Almost surely, 2^749374391 is an apocalyptic number.

749374391 is a deficient number, since it is larger than the sum of its proper divisors (1).

749374391 is an equidigital number, since it uses as much as digits as its factorization.

749374391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 749374391 is about 27374.7034869786. The cubic root of 749374391 is about 908.3076023648.

The spelling of 749374391 in words is "seven hundred forty-nine million, three hundred seventy-four thousand, three hundred ninety-one".