22987963 has 2 divisors, whose sum is σ = 22987964. Its totient is φ = 22987962.

The previous prime is 22987949. The next prime is 22987969. The reversal of 22987963 is 36978922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22987963 - 2¹³ = 22979771 is a prime.

It is not a weakly prime, because it can be changed into another prime (22987969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11493981 + 11493982.

It is an arithmetic number, because the mean of its divisors is an integer number (11493982).

Almost surely, 2^22987963 is an apocalyptic number.

22987963 is a deficient number, since it is larger than the sum of its proper divisors (1).

22987963 is an equidigital number, since it uses as much as digits as its factorization.

22987963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 22987963 is about 4794.5764150757. The cubic root of 22987963 is about 284.3370782746.

The spelling of 22987963 in words is "twenty-two million, nine hundred eighty-seven thousand, nine hundred sixty-three".