22885661 has 2 divisors, whose sum is σ = 22885662. Its totient is φ = 22885660.

The previous prime is 22885631. The next prime is 22885697. The reversal of 22885661 is 16658822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16605625 + 6280036 = 4075^2 + 2506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22885661 is a prime.

It is a super-3 number, since 3×22885661³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22885631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11442830 + 11442831.

It is an arithmetic number, because the mean of its divisors is an integer number (11442831).

Almost surely, 2^22885661 is an apocalyptic number.

It is an amenable number.

22885661 is a deficient number, since it is larger than the sum of its proper divisors (1).

22885661 is an equidigital number, since it uses as much as digits as its factorization.

22885661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 38.

The square root of 22885661 is about 4783.8960063948. The cubic root of 22885661 is about 283.9146614254.

The spelling of 22885661 in words is "twenty-two million, eight hundred eighty-five thousand, six hundred sixty-one".