749000849 has 2 divisors, whose sum is σ = 749000850. Its totient is φ = 749000848.

The previous prime is 749000821. The next prime is 749000869. The reversal of 749000849 is 948000947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725332624 + 23668225 = 26932^2 + 4865^2 .

It is an emirp because it is prime and its reverse (948000947) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749000849 is a prime.

It is a super-2 number, since 2×749000849² = 1122004543605441602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (749000809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374500424 + 374500425.

It is an arithmetic number, because the mean of its divisors is an integer number (374500425).

Almost surely, 2^749000849 is an apocalyptic number.

It is an amenable number.

749000849 is a deficient number, since it is larger than the sum of its proper divisors (1).

749000849 is an equidigital number, since it uses as much as digits as its factorization.

749000849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 749000849 is about 27367.8798776960. The cubic root of 749000849 is about 908.1566553732.

The spelling of 749000849 in words is "seven hundred forty-nine million, eight hundred forty-nine", and thus it is an aban number.