33489013 has 2 divisors, whose sum is σ = 33489014. Its totient is φ = 33489012.

The previous prime is 33488977. The next prime is 33489047. The reversal of 33489013 is 31098433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33200644 + 288369 = 5762^2 + 537^2 .

It is an emirp because it is prime and its reverse (31098433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33489013 - 2⁹ = 33488501 is a prime.

It is a super-2 number, since 2×33489013² = 2243027983428338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33489073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16744506 + 16744507.

It is an arithmetic number, because the mean of its divisors is an integer number (16744507).

Almost surely, 2^33489013 is an apocalyptic number.

It is an amenable number.

33489013 is a deficient number, since it is larger than the sum of its proper divisors (1).

33489013 is an equidigital number, since it uses as much as digits as its factorization.

33489013 is an evil number, because the sum of its binary digits is even.

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

The square root of 33489013 is about 5786.9692413214. The cubic root of 33489013 is about 322.3300404462.

The spelling of 33489013 in words is "thirty-three million, four hundred eighty-nine thousand, thirteen".