533749 has 4 divisors (see below), whose sum is σ = 565164. Its totient is φ = 502336.

The previous prime is 533747. The next prime is 533777. The reversal of 533749 is 947335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 947335 = 5 ⋅189467.

It can be written as a sum of positive squares in 2 ways, for example, as 324900 + 208849 = 570^2 + 457^2 .

It is a cyclic number.

It is not a de Polignac number, because 533749 - 2¹ = 533747 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 5 + 3 + 7² + 3⁷ + 4³ + 9⁶ .

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 533749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533747) 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, 15682 + ... + 15715.

It is an arithmetic number, because the mean of its divisors is an integer number (141291).

2⁵³³⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

533749 is a deficient number, since it is larger than the sum of its proper divisors (31415).

533749 is a wasteful number, since it uses less digits than its factorization.

533749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31414.

The product of its digits is 11340, while the sum is 31.

The square root of 533749 is about 730.5812754239. The cubic root of 533749 is about 81.1170892086.

The spelling of 533749 in words is "five hundred thirty-three thousand, seven hundred forty-nine".