33344989 has 4 divisors (see below), whose sum is σ = 33365824. Its totient is φ = 33324156.

The previous prime is 33344977. The next prime is 33344999. The reversal of 33344989 is 98944333.

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: 98944333 = 43 ⋅2301031.

It is a cyclic number.

It is not a de Polignac number, because 33344989 - 2⁵ = 33344957 is a prime.

It is a super-2 number, since 2×33344989² = 2223776582820242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33344929) 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, 7797 + ... + 11290.

It is an arithmetic number, because the mean of its divisors is an integer number (8341456).

Almost surely, 2^33344989 is an apocalyptic number.

It is an amenable number.

33344989 is a deficient number, since it is larger than the sum of its proper divisors (20835).

33344989 is a wasteful number, since it uses less digits than its factorization.

33344989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20834.

The product of its digits is 279936, while the sum is 43.

The square root of 33344989 is about 5774.5120140147. The cubic root of 33344989 is about 321.8673019053.

The spelling of 33344989 in words is "thirty-three million, three hundred forty-four thousand, nine hundred eighty-nine".