33092989 has 2 divisors, whose sum is σ = 33092990. Its totient is φ = 33092988.

The previous prime is 33092971. The next prime is 33092993. The reversal of 33092989 is 98929033.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32205625 + 887364 = 5675^2 + 942^2 .

It is a cyclic number.

It is not a de Polignac number, because 33092989 - 2⁷ = 33092861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33092789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16546494 + 16546495.

It is an arithmetic number, because the mean of its divisors is an integer number (16546495).

Almost surely, 2^33092989 is an apocalyptic number.

It is an amenable number.

33092989 is a deficient number, since it is larger than the sum of its proper divisors (1).

33092989 is an equidigital number, since it uses as much as digits as its factorization.

33092989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 33092989 is about 5752.6506064596. The cubic root of 33092989 is about 321.0544286481.

The spelling of 33092989 in words is "thirty-three million, ninety-two thousand, nine hundred eighty-nine".