33489689 has 2 divisors, whose sum is σ = 33489690. Its totient is φ = 33489688.

The previous prime is 33489683. The next prime is 33489707. The reversal of 33489689 is 98698433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33120025 + 369664 = 5755^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 33489689 - 2⁸ = 33489433 is a prime.

It is a super-2 number, since 2×33489689² = 2243118538633442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33489683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16744844 + 16744845.

It is an arithmetic number, because the mean of its divisors is an integer number (16744845).

Almost surely, 2^33489689 is an apocalyptic number.

It is an amenable number.

33489689 is a deficient number, since it is larger than the sum of its proper divisors (1).

33489689 is an equidigital number, since it uses as much as digits as its factorization.

33489689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The square root of 33489689 is about 5787.0276481109. The cubic root of 33489689 is about 322.3322092534.

The spelling of 33489689 in words is "thirty-three million, four hundred eighty-nine thousand, six hundred eighty-nine".