743449 has 4 divisors (see below), whose sum is σ = 849664. Its totient is φ = 637236.

The previous prime is 743447. The next prime is 743507. The reversal of 743449 is 944347.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 944347 = 659 ⋅1433.

It is a cyclic number.

It is not a de Polignac number, because 743449 - 2¹ = 743447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 743449.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53097 + ... + 53110.

It is an arithmetic number, because the mean of its divisors is an integer number (212416).

2⁷⁴³⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

743449 is a deficient number, since it is larger than the sum of its proper divisors (106215).

743449 is a wasteful number, since it uses less digits than its factorization.

743449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106214.

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

The square root of 743449 is about 862.2348867913. The cubic root of 743449 is about 90.5907233037.

The spelling of 743449 in words is "seven hundred forty-three thousand, four hundred forty-nine".