749279 has 2 divisors, whose sum is σ = 749280. Its totient is φ = 749278.

The previous prime is 749267. The next prime is 749297. The reversal of 749279 is 972947.

It is a happy number.

Together with next prime (749297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749279 is a prime.

It is a super-3 number, since 3×749279³ = 1261978445302333917, which contains 333 as substring. Note that it is a super-d number also for d = 2.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 374639 + 374640.

It is an arithmetic number, because the mean of its divisors is an integer number (374640).

2⁷⁴⁹²⁷⁹ is an apocalyptic number.

749279 is a deficient number, since it is larger than the sum of its proper divisors (1).

749279 is an equidigital number, since it uses as much as digits as its factorization.

749279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 749279 is about 865.6090341488. The cubic root of 749279 is about 90.8269059972.

The spelling of 749279 in words is "seven hundred forty-nine thousand, two hundred seventy-nine".