749291903 has 2 divisors, whose sum is σ = 749291904. Its totient is φ = 749291902.

The previous prime is 749291827. The next prime is 749291909. The reversal of 749291903 is 309192947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 749291903 - 2¹² = 749287807 is a prime.

It is a super-2 number, since 2×749291903² = 1122876711802722818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749291909) 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, 374645951 + 374645952.

It is an arithmetic number, because the mean of its divisors is an integer number (374645952).

Almost surely, 2^749291903 is an apocalyptic number.

749291903 is a deficient number, since it is larger than the sum of its proper divisors (1).

749291903 is an equidigital number, since it uses as much as digits as its factorization.

749291903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 749291903 is about 27373.1967990587. The cubic root of 749291903 is about 908.2742735740.

The spelling of 749291903 in words is "seven hundred forty-nine million, two hundred ninety-one thousand, nine hundred three".