33968261 has 4 divisors (see below), whose sum is σ = 35966412. Its totient is φ = 31970112.

The previous prime is 33968243. The next prime is 33968269. The reversal of 33968261 is 16286933.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27363361 + 6604900 = 5231^2 + 2570^2 .

It is a cyclic number.

It is not a de Polignac number, because 33968261 - 2¹⁸ = 33706117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33968269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999050 + ... + 999083.

It is an arithmetic number, because the mean of its divisors is an integer number (8991603).

Almost surely, 2^33968261 is an apocalyptic number.

It is an amenable number.

33968261 is a deficient number, since it is larger than the sum of its proper divisors (1998151).

33968261 is a wasteful number, since it uses less digits than its factorization.

33968261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998150.

The product of its digits is 46656, while the sum is 38.

The square root of 33968261 is about 5828.2296625991. The cubic root of 33968261 is about 323.8603428235.

The spelling of 33968261 in words is "thirty-three million, nine hundred sixty-eight thousand, two hundred sixty-one".