749423447 has 2 divisors, whose sum is σ = 749423448. Its totient is φ = 749423446.

The previous prime is 749423407. The next prime is 749423471. The reversal of 749423447 is 744324947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 749423447 - 2¹⁶ = 749357911 is a prime.

It is a Chen prime.

It is equal to p_38674907 and since 749423447 and 38674907 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 749423398 and 749423407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749423407) 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, 374711723 + 374711724.

It is an arithmetic number, because the mean of its divisors is an integer number (374711724).

Almost surely, 2^749423447 is an apocalyptic number.

749423447 is a deficient number, since it is larger than the sum of its proper divisors (1).

749423447 is an equidigital number, since it uses as much as digits as its factorization.

749423447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 44.

The square root of 749423447 is about 27375.5994820205. The cubic root of 749423447 is about 908.3274219930.

The spelling of 749423447 in words is "seven hundred forty-nine million, four hundred twenty-three thousand, four hundred forty-seven".