22687633 has 2 divisors, whose sum is σ = 22687634. Its totient is φ = 22687632.

The previous prime is 22687631. The next prime is 22687667. The reversal of 22687633 is 33678622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21641104 + 1046529 = 4652^2 + 1023^2 .

It is a cyclic number.

It is not a de Polignac number, because 22687633 - 2¹ = 22687631 is a prime.

It is a super-2 number, since 2×22687633² = 1029457382285378, which contains 22 as substring.

Together with 22687631, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 22687592 and 22687601.

It is not a weakly prime, because it can be changed into another prime (22687631) 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, 11343816 + 11343817.

It is an arithmetic number, because the mean of its divisors is an integer number (11343817).

Almost surely, 2^22687633 is an apocalyptic number.

It is an amenable number.

22687633 is a deficient number, since it is larger than the sum of its proper divisors (1).

22687633 is an equidigital number, since it uses as much as digits as its factorization.

22687633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 22687633 is about 4763.1536821732. The cubic root of 22687633 is about 283.0933902468.

The spelling of 22687633 in words is "twenty-two million, six hundred eighty-seven thousand, six hundred thirty-three".