33042487 has 2 divisors, whose sum is σ = 33042488. Its totient is φ = 33042486.

The previous prime is 33042473. The next prime is 33042491. The reversal of 33042487 is 78424033.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33042487 - 2¹⁵ = 33009719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33042437) 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 as a sum of consecutive naturals, namely, 16521243 + 16521244.

It is an arithmetic number, because the mean of its divisors is an integer number (16521244).

Almost surely, 2^33042487 is an apocalyptic number.

33042487 is a deficient number, since it is larger than the sum of its proper divisors (1).

33042487 is an equidigital number, since it uses as much as digits as its factorization.

33042487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 33042487 is about 5748.2594757022. The cubic root of 33042487 is about 320.8910290272.

The spelling of 33042487 in words is "thirty-three million, forty-two thousand, four hundred eighty-seven".