749548517 has 2 divisors, whose sum is σ = 749548518. Its totient is φ = 749548516.

The previous prime is 749548489. The next prime is 749548531. The reversal of 749548517 is 715845947.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 726518116 + 23030401 = 26954^2 + 4799^2 .

It is a cyclic number.

It is not a de Polignac number, because 749548517 - 2⁶ = 749548453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749541517) 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, 374774258 + 374774259.

It is an arithmetic number, because the mean of its divisors is an integer number (374774259).

Almost surely, 2^749548517 is an apocalyptic number.

It is an amenable number.

749548517 is a deficient number, since it is larger than the sum of its proper divisors (1).

749548517 is an equidigital number, since it uses as much as digits as its factorization.

749548517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 50.

The square root of 749548517 is about 27377.8837202586. The cubic root of 749548517 is about 908.3779489200.

The spelling of 749548517 in words is "seven hundred forty-nine million, five hundred forty-eight thousand, five hundred seventeen".