22987751 has 2 divisors, whose sum is σ = 22987752. Its totient is φ = 22987750.

The previous prime is 22987729. The next prime is 22987753. The reversal of 22987751 is 15778922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22987751 - 2⁶ = 22987687 is a prime.

Together with 22987753, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22987699 and 22987708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22987753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11493875 + 11493876.

It is an arithmetic number, because the mean of its divisors is an integer number (11493876).

Almost surely, 2^22987751 is an apocalyptic number.

22987751 is a deficient number, since it is larger than the sum of its proper divisors (1).

22987751 is an equidigital number, since it uses as much as digits as its factorization.

22987751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 22987751 is about 4794.5543067109. The cubic root of 22987751 is about 284.3362041991.

The spelling of 22987751 in words is "twenty-two million, nine hundred eighty-seven thousand, seven hundred fifty-one".