33021983 has 2 divisors, whose sum is σ = 33021984. Its totient is φ = 33021982.

The previous prime is 33021971. The next prime is 33022049. The reversal of 33021983 is 38912033.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33021983 - 2¹⁰ = 33020959 is a prime.

It is a super-2 number, since 2×33021983² = 2180902722504578, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33021083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16510991 + 16510992.

It is an arithmetic number, because the mean of its divisors is an integer number (16510992).

Almost surely, 2^33021983 is an apocalyptic number.

33021983 is a deficient number, since it is larger than the sum of its proper divisors (1).

33021983 is an equidigital number, since it uses as much as digits as its factorization.

33021983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 33021983 is about 5746.4757025502. The cubic root of 33021983 is about 320.8246406520.

The spelling of 33021983 in words is "thirty-three million, twenty-one thousand, nine hundred eighty-three".