749249 has 2 divisors, whose sum is σ = 749250. Its totient is φ = 749248.

The previous prime is 749237. The next prime is 749257. The reversal of 749249 is 942947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 748225 + 1024 = 865^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 749249 - 2¹⁶ = 683713 is a prime.

It is a super-2 number, since 2×749249² = 1122748128002, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374624 + 374625.

It is an arithmetic number, because the mean of its divisors is an integer number (374625).

2⁷⁴⁹²⁴⁹ is an apocalyptic number.

It is an amenable number.

749249 is a deficient number, since it is larger than the sum of its proper divisors (1).

749249 is an equidigital number, since it uses as much as digits as its factorization.

749249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 749249 is about 865.5917051359. The cubic root of 749249 is about 90.8256937902.

The spelling of 749249 in words is "seven hundred forty-nine thousand, two hundred forty-nine".