22060891 has 2 divisors, whose sum is σ = 22060892. Its totient is φ = 22060890.

The previous prime is 22060873. The next prime is 22060897. The reversal of 22060891 is 19806022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22060891 is a prime.

It is equal to p_1392904 and since 22060891 and 1392904 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22060897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11030445 + 11030446.

It is an arithmetic number, because the mean of its divisors is an integer number (11030446).

Almost surely, 2^22060891 is an apocalyptic number.

22060891 is a deficient number, since it is larger than the sum of its proper divisors (1).

22060891 is an equidigital number, since it uses as much as digits as its factorization.

22060891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 22060891 is about 4696.9022770332. The cubic root of 22060891 is about 280.4622085306.

The spelling of 22060891 in words is "twenty-two million, sixty thousand, eight hundred ninety-one".