749447 has 8 divisors (see below), whose sum is σ = 794640. Its totient is φ = 705600.

The previous prime is 749443. The next prime is 749449. The reversal of 749447 is 744947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 749447 - 2² = 749443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947 + ... + 1547.

It is an arithmetic number, because the mean of its divisors is an integer number (99330).

2⁷⁴⁹⁴⁴⁷ is an apocalyptic number.

749447 is a deficient number, since it is larger than the sum of its proper divisors (45193).

749447 is a wasteful number, since it uses less digits than its factorization.

749447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its digits is 28224, while the sum is 35.

The square root of 749447 is about 865.7060702109. The cubic root of 749447 is about 90.8336937580.

The spelling of 749447 in words is "seven hundred forty-nine thousand, four hundred forty-seven".