749443 has 2 divisors, whose sum is σ = 749444. Its totient is φ = 749442.

The previous prime is 749431. The next prime is 749449. The reversal of 749443 is 344947.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749443 is a prime.

It is not a weakly prime, because it can be changed into another prime (749449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374721 + 374722.

It is an arithmetic number, because the mean of its divisors is an integer number (374722).

2⁷⁴⁹⁴⁴³ is an apocalyptic number.

749443 is a deficient number, since it is larger than the sum of its proper divisors (1).

749443 is an equidigital number, since it uses as much as digits as its factorization.

749443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 749443 is about 865.7037599549. The cubic root of 749443 is about 90.8335321564.

Subtracting from 749443 its reverse (344947), we obtain a square (404496 = 636²).

It can be divided in two parts, 74944 and 3, that added together give a palindrome (74947).

The spelling of 749443 in words is "seven hundred forty-nine thousand, four hundred forty-three".