33496921 has 2 divisors, whose sum is σ = 33496922. Its totient is φ = 33496920.

The previous prime is 33496909. The next prime is 33496963. The reversal of 33496921 is 12969433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 7639696 = 5085^2 + 2764^2 .

It is an emirp because it is prime and its reverse (12969433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33496921 - 2¹³ = 33488729 is a prime.

It is a super-2 number, since 2×33496921² = 2244087432960482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33496121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16748460 + 16748461.

It is an arithmetic number, because the mean of its divisors is an integer number (16748461).

Almost surely, 2^33496921 is an apocalyptic number.

It is an amenable number.

33496921 is a deficient number, since it is larger than the sum of its proper divisors (1).

33496921 is an equidigital number, since it uses as much as digits as its factorization.

33496921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 37.

The square root of 33496921 is about 5787.6524601949. The cubic root of 33496921 is about 322.3554098148.

The spelling of 33496921 in words is "thirty-three million, four hundred ninety-six thousand, nine hundred twenty-one".