22735861 has 2 divisors, whose sum is σ = 22735862. Its totient is φ = 22735860.

The previous prime is 22735849. The next prime is 22735877. The reversal of 22735861 is 16853722.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13645636 + 9090225 = 3694^2 + 3015^2 .

It is a cyclic number.

It is not a de Polignac number, because 22735861 - 2¹⁷ = 22604789 is a prime.

It is a super-2 number, since 2×22735861² = 1033838750822642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22735841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11367930 + 11367931.

It is an arithmetic number, because the mean of its divisors is an integer number (11367931).

Almost surely, 2^22735861 is an apocalyptic number.

It is an amenable number.

22735861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22735861 is an equidigital number, since it uses as much as digits as its factorization.

22735861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 22735861 is about 4768.2136067924. The cubic root of 22735861 is about 283.2938425545.

The spelling of 22735861 in words is "twenty-two million, seven hundred thirty-five thousand, eight hundred sixty-one".