33740689 has 4 divisors (see below), whose sum is σ = 34458624. Its totient is φ = 33022756.

The previous prime is 33740669. The next prime is 33740719. The reversal of 33740689 is 98604733.

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: 98604733 = 8599 ⋅11467.

It is a cyclic number.

It is not a de Polignac number, because 33740689 - 2⁵ = 33740657 is a prime.

It is a super-2 number, since 2×33740689² = 2276868188389442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33740639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358897 + ... + 358990.

It is an arithmetic number, because the mean of its divisors is an integer number (8614656).

Almost surely, 2^33740689 is an apocalyptic number.

It is an amenable number.

33740689 is a deficient number, since it is larger than the sum of its proper divisors (717935).

33740689 is an equidigital number, since it uses as much as digits as its factorization.

33740689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717934.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 33740689 is about 5808.6736007457. The cubic root of 33740689 is about 323.1354823397.

The spelling of 33740689 in words is "thirty-three million, seven hundred forty thousand, six hundred eighty-nine".