22287701 has 2 divisors, whose sum is σ = 22287702. Its totient is φ = 22287700.

The previous prime is 22287679. The next prime is 22287709. The reversal of 22287701 is 10778222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19140625 + 3147076 = 4375^2 + 1774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22287701 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22287709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11143850 + 11143851.

It is an arithmetic number, because the mean of its divisors is an integer number (11143851).

Almost surely, 2^22287701 is an apocalyptic number.

It is an amenable number.

22287701 is a deficient number, since it is larger than the sum of its proper divisors (1).

22287701 is an equidigital number, since it uses as much as digits as its factorization.

22287701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 22287701 is about 4720.9851726096. The cubic root of 22287701 is about 281.4200856962.

The spelling of 22287701 in words is "twenty-two million, two hundred eighty-seven thousand, seven hundred one".