22666667 has 4 divisors (see below), whose sum is σ = 22679160. Its totient is φ = 22654176.

The previous prime is 22666663. The next prime is 22666687. The reversal of 22666667 is 76666622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22666667 - 2² = 22666663 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22666663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942 + ... + 7347.

It is an arithmetic number, because the mean of its divisors is an integer number (5669790).

Almost surely, 2^22666667 is an apocalyptic number.

22666667 is a deficient number, since it is larger than the sum of its proper divisors (12493).

22666667 is a wasteful number, since it uses less digits than its factorization.

22666667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12492.

The product of its digits is 217728, while the sum is 41.

The square root of 22666667 is about 4760.9523207022. The cubic root of 22666667 is about 283.0061596798.

The spelling of 22666667 in words is "twenty-two million, six hundred sixty-six thousand, six hundred sixty-seven".