33290961 has 8 divisors (see below), whose sum is σ = 48423264. Its totient is φ = 20176320.

The previous prime is 33290951. The next prime is 33290963. The reversal of 33290961 is 16909233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33290961 - 2⁶ = 33290897 is a prime.

It is a super-2 number, since 2×33290961² = 2216576168607042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1008817 = 33290961 / (3 + 3 + 2 + 9 + 0 + 9 + 6 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33290963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504376 + ... + 504441.

It is an arithmetic number, because the mean of its divisors is an integer number (6052908).

Almost surely, 2^33290961 is an apocalyptic number.

It is an amenable number.

33290961 is a deficient number, since it is larger than the sum of its proper divisors (15132303).

33290961 is a wasteful number, since it uses less digits than its factorization.

33290961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008831.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 33290961 is about 5769.8319732900. The cubic root of 33290961 is about 321.6933702525.

The spelling of 33290961 in words is "thirty-three million, two hundred ninety thousand, nine hundred sixty-one".