33989597 has 4 divisors (see below), whose sum is σ = 34003200. Its totient is φ = 33975996.

The previous prime is 33989591. The next prime is 33989611. The reversal of 33989597 is 79598933.

33989597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 79598933 = 271 ⋅293723.

It is a cyclic number.

It is not a de Polignac number, because 33989597 - 2⁴ = 33989581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33989591) 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 3 ways as a sum of consecutive naturals, for example, 1853 + ... + 8450.

It is an arithmetic number, because the mean of its divisors is an integer number (8500800).

Almost surely, 2^33989597 is an apocalyptic number.

It is an amenable number.

33989597 is a deficient number, since it is larger than the sum of its proper divisors (13603).

33989597 is a wasteful number, since it uses less digits than its factorization.

33989597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13602.

The product of its digits is 1837080, while the sum is 53.

The square root of 33989597 is about 5830.0597767090. The cubic root of 33989597 is about 323.9281358930.

The spelling of 33989597 in words is "thirty-three million, nine hundred eighty-nine thousand, five hundred ninety-seven".