866207632 has 20 divisors (see below), whose sum is σ = 1691092656. Its totient is φ = 429796640.

The previous prime is 866207627. The next prime is 866207633. The reversal of 866207632 is 236702668.

It is not an unprimeable number, because it can be changed into a prime (866207633) 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 3 ways as a sum of consecutive naturals, for example, 204538 + ... + 208729.

Almost surely, 2^866207632 is an apocalyptic number.

It is an amenable number.

866207632 is a deficient number, since it is larger than the sum of its proper divisors (824885024).

866207632 is a wasteful number, since it uses less digits than its factorization.

866207632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413406 (or 413400 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 866207632 is about 29431.4055389817. The cubic root of 866207632 is about 953.2511443427.

The spelling of 866207632 in words is "eight hundred sixty-six million, two hundred seven thousand, six hundred thirty-two".