3638233 has 2 divisors, whose sum is σ = 3638234. Its totient is φ = 3638232.

The previous prime is 3638227. The next prime is 3638237. The reversal of 3638233 is 3328363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3337929 + 300304 = 1827^2 + 548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3638233 is a prime.

3638233 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3638237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819116 + 1819117.

It is an arithmetic number, because the mean of its divisors is an integer number (1819117).

Almost surely, 2^3638233 is an apocalyptic number.

It is an amenable number.

3638233 is a deficient number, since it is larger than the sum of its proper divisors (1).

3638233 is an equidigital number, since it uses as much as digits as its factorization.

3638233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 28.

The square root of 3638233 is about 1907.4152667943. The cubic root of 3638233 is about 153.8025382835.

The spelling of 3638233 in words is "three million, six hundred thirty-eight thousand, two hundred thirty-three".