10633921 has 2 divisors, whose sum is σ = 10633922. Its totient is φ = 10633920.

The previous prime is 10633919. The next prime is 10633937. The reversal of 10633921 is 12933601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7263025 + 3370896 = 2695^2 + 1836^2 .

It is a cyclic number.

It is not a de Polignac number, because 10633921 - 2¹ = 10633919 is a prime.

It is a super-2 number, since 2×10633921² = 226160551668482, which contains 22 as substring.

Together with 10633919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10633951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5316960 + 5316961.

It is an arithmetic number, because the mean of its divisors is an integer number (5316961).

Almost surely, 2^10633921 is an apocalyptic number.

It is an amenable number.

10633921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10633921 is an equidigital number, since it uses as much as digits as its factorization.

10633921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 10633921 is about 3260.9693344158. The cubic root of 10633921 is about 219.9029944233.

The spelling of 10633921 in words is "ten million, six hundred thirty-three thousand, nine hundred twenty-one".