749848949 has 2 divisors, whose sum is σ = 749848950. Its totient is φ = 749848948.

The previous prime is 749848901. The next prime is 749848973. The reversal of 749848949 is 949848947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425596900 + 324252049 = 20630^2 + 18007^2 .

It is an emirp because it is prime and its reverse (949848947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 749848949 - 2²⁰ = 748800373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 749848891 and 749848900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749848999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374924474 + 374924475.

It is an arithmetic number, because the mean of its divisors is an integer number (374924475).

Almost surely, 2^749848949 is an apocalyptic number.

It is an amenable number.

749848949 is a deficient number, since it is larger than the sum of its proper divisors (1).

749848949 is an equidigital number, since it uses as much as digits as its factorization.

749848949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 62.

The square root of 749848949 is about 27383.3699350536. The cubic root of 749848949 is about 908.4992972357.

The spelling of 749848949 in words is "seven hundred forty-nine million, eight hundred forty-eight thousand, nine hundred forty-nine".