33013489 has 4 divisors (see below), whose sum is σ = 33223924. Its totient is φ = 32803056.

The previous prime is 33013433. The next prime is 33013501. The reversal of 33013489 is 98431033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98431033 = 109 ⋅903037.

It can be written as a sum of positive squares in 2 ways, for example, as 9199089 + 23814400 = 3033^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 33013489 - 2¹¹ = 33011441 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 33013489.

It is not an unprimeable number, because it can be changed into a prime (33013789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104982 + ... + 105295.

It is an arithmetic number, because the mean of its divisors is an integer number (8305981).

Almost surely, 2^33013489 is an apocalyptic number.

It is an amenable number.

33013489 is a deficient number, since it is larger than the sum of its proper divisors (210435).

33013489 is a wasteful number, since it uses less digits than its factorization.

33013489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210434.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 33013489 is about 5745.7365933360. The cubic root of 33013489 is about 320.7971305115.

The spelling of 33013489 in words is "thirty-three million, thirteen thousand, four hundred eighty-nine".