972666224 has 20 divisors (see below), whose sum is σ = 1894113144. Its totient is φ = 483862848.

The previous prime is 972666193. The next prime is 972666257. The reversal of 972666224 is 422666279.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151142 + ... + 157445.

Almost surely, 2^972666224 is an apocalyptic number.

It is an amenable number.

972666224 is a deficient number, since it is larger than the sum of its proper divisors (921446920).

972666224 is a wasteful number, since it uses less digits than its factorization.

972666224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308792 (or 308786 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 972666224 is about 31187.5972784054. The cubic root of 972666224 is about 990.8044422376.

Subtracting from 972666224 its reverse (422666279), we obtain a palindrome (549999945).

The spelling of 972666224 in words is "nine hundred seventy-two million, six hundred sixty-six thousand, two hundred twenty-four".