33939481 has 2 divisors, whose sum is σ = 33939482. Its totient is φ = 33939480.

The previous prime is 33939457. The next prime is 33939487. The reversal of 33939481 is 18493933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33872400 + 67081 = 5820^2 + 259^2 .

It is a cyclic number.

It is not a de Polignac number, because 33939481 - 2⁵ = 33939449 is a prime.

It is a super-2 number, since 2×33939481² = 2303776741098722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33939487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16969740 + 16969741.

It is an arithmetic number, because the mean of its divisors is an integer number (16969741).

Almost surely, 2^33939481 is an apocalyptic number.

It is an amenable number.

33939481 is a deficient number, since it is larger than the sum of its proper divisors (1).

33939481 is an equidigital number, since it uses as much as digits as its factorization.

33939481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 33939481 is about 5825.7601220785. The cubic root of 33939481 is about 323.7688521791.

The spelling of 33939481 in words is "thirty-three million, nine hundred thirty-nine thousand, four hundred eighty-one".