749493457 has 2 divisors, whose sum is σ = 749493458. Its totient is φ = 749493456.

The previous prime is 749493439. The next prime is 749493473. The reversal of 749493457 is 754394947.

749493457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 724901776 + 24591681 = 26924^2 + 4959^2 .

It is an emirp because it is prime and its reverse (754394947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 749493457 - 2²⁷ = 615275729 is a prime.

It is not a weakly prime, because it can be changed into another prime (749493257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374746728 + 374746729.

It is an arithmetic number, because the mean of its divisors is an integer number (374746729).

Almost surely, 2^749493457 is an apocalyptic number.

It is an amenable number.

749493457 is a deficient number, since it is larger than the sum of its proper divisors (1).

749493457 is an equidigital number, since it uses as much as digits as its factorization.

749493457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 52.

The square root of 749493457 is about 27376.8781456177. The cubic root of 749493457 is about 908.3557059682.

The spelling of 749493457 in words is "seven hundred forty-nine million, four hundred ninety-three thousand, four hundred fifty-seven".