22664977 has 8 divisors (see below), whose sum is σ = 23112360. Its totient is φ = 22220160.

The previous prime is 22664963. The next prime is 22664981. The reversal of 22664977 is 77946622.

It can be written as a sum of positive squares in 4 ways, for example, as 1218816 + 21446161 = 1104^2 + 4631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22664977 - 2⁷ = 22664849 is a prime.

It is a super-3 number, since 3×22664977³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22664947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34383 + ... + 35035.

It is an arithmetic number, because the mean of its divisors is an integer number (2889045).

Almost surely, 2^22664977 is an apocalyptic number.

It is an amenable number.

22664977 is a deficient number, since it is larger than the sum of its proper divisors (447383).

22664977 is an equidigital number, since it uses as much as digits as its factorization.

22664977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283.

The product of its digits is 254016, while the sum is 43.

The square root of 22664977 is about 4760.7748318945. The cubic root of 22664977 is about 282.9991259697. Note that the first 3 decimals are identical.

The spelling of 22664977 in words is "twenty-two million, six hundred sixty-four thousand, nine hundred seventy-seven".