22827491 has 2 divisors, whose sum is σ = 22827492. Its totient is φ = 22827490.

The previous prime is 22827443. The next prime is 22827499. The reversal of 22827491 is 19472822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22827491 is a prime.

It is not a weakly prime, because it can be changed into another prime (22827499) 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, 11413745 + 11413746.

It is an arithmetic number, because the mean of its divisors is an integer number (11413746).

Almost surely, 2^22827491 is an apocalyptic number.

22827491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22827491 is an equidigital number, since it uses as much as digits as its factorization.

22827491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 22827491 is about 4777.8123655079. The cubic root of 22827491 is about 283.6739090996.

The spelling of 22827491 in words is "twenty-two million, eight hundred twenty-seven thousand, four hundred ninety-one".