33985493 has 2 divisors, whose sum is σ = 33985494. Its totient is φ = 33985492.

The previous prime is 33985487. The next prime is 33985507. The reversal of 33985493 is 39458933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32341969 + 1643524 = 5687^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 33985493 - 2²² = 29791189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33985403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16992746 + 16992747.

It is an arithmetic number, because the mean of its divisors is an integer number (16992747).

Almost surely, 2^33985493 is an apocalyptic number.

It is an amenable number.

33985493 is a deficient number, since it is larger than the sum of its proper divisors (1).

33985493 is an equidigital number, since it uses as much as digits as its factorization.

33985493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 33985493 is about 5829.7077971370. The cubic root of 33985493 is about 323.9150980354.

The spelling of 33985493 in words is "thirty-three million, nine hundred eighty-five thousand, four hundred ninety-three".