7638233 has 2 divisors, whose sum is σ = 7638234. Its totient is φ = 7638232.

The previous prime is 7638229. The next prime is 7638269. The reversal of 7638233 is 3328367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7441984 + 196249 = 2728^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 7638233 - 2² = 7638229 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7638233.

It is not a weakly prime, because it can be changed into another prime (7638283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819116 + 3819117.

It is an arithmetic number, because the mean of its divisors is an integer number (3819117).

Almost surely, 2^7638233 is an apocalyptic number.

It is an amenable number.

7638233 is a deficient number, since it is larger than the sum of its proper divisors (1).

7638233 is an equidigital number, since it uses as much as digits as its factorization.

7638233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The square root of 7638233 is about 2763.7353346513. The cubic root of 7638233 is about 196.9386549183.

The spelling of 7638233 in words is "seven million, six hundred thirty-eight thousand, two hundred thirty-three".