22867661 has 2 divisors, whose sum is σ = 22867662. Its totient is φ = 22867660.

The previous prime is 22867651. The next prime is 22867679. The reversal of 22867661 is 16676822.

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., 21855625 + 1012036 = 4675^2 + 1006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22867661 is a prime.

It is a super-2 number, since 2×22867661² = 1045859839221842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22867651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11433830 + 11433831.

It is an arithmetic number, because the mean of its divisors is an integer number (11433831).

Almost surely, 2^22867661 is an apocalyptic number.

It is an amenable number.

22867661 is a deficient number, since it is larger than the sum of its proper divisors (1).

22867661 is an equidigital number, since it uses as much as digits as its factorization.

22867661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 22867661 is about 4782.0143245289. The cubic root of 22867661 is about 283.8402071734.

The spelling of 22867661 in words is "twenty-two million, eight hundred sixty-seven thousand, six hundred sixty-one".