749543 has 2 divisors, whose sum is σ = 749544. Its totient is φ = 749542.

The previous prime is 749471. The next prime is 749557. The reversal of 749543 is 345947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 749543 - 2¹⁶ = 684007 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 (749143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374771 + 374772.

It is an arithmetic number, because the mean of its divisors is an integer number (374772).

2⁷⁴⁹⁵⁴³ is an apocalyptic number.

749543 is a deficient number, since it is larger than the sum of its proper divisors (1).

749543 is an equidigital number, since it uses as much as digits as its factorization.

749543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 749543 is about 865.7615145062. The cubic root of 749543 is about 90.8375720230.

The spelling of 749543 in words is "seven hundred forty-nine thousand, five hundred forty-three".