22750789 has 2 divisors, whose sum is σ = 22750790. Its totient is φ = 22750788.

The previous prime is 22750787. The next prime is 22750801. The reversal of 22750789 is 98705722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22638564 + 112225 = 4758^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 22750789 - 2¹ = 22750787 is a prime.

Together with 22750787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22750781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11375394 + 11375395.

It is an arithmetic number, because the mean of its divisors is an integer number (11375395).

Almost surely, 2^22750789 is an apocalyptic number.

It is an amenable number.

22750789 is a deficient number, since it is larger than the sum of its proper divisors (1).

22750789 is an equidigital number, since it uses as much as digits as its factorization.

22750789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 22750789 is about 4769.7787160412. The cubic root of 22750789 is about 283.3558310471.

The spelling of 22750789 in words is "twenty-two million, seven hundred fifty thousand, seven hundred eighty-nine".