866608952 has 16 divisors (see below), whose sum is σ = 1772609400. Its totient is φ = 393913120.

The previous prime is 866608903. The next prime is 866608957. The reversal of 866608952 is 259806668.

It is a super-2 number, since 2×866608952² = 1502022151373076608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 866608952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866608957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4923827 + ... + 4924002.

Almost surely, 2^866608952 is an apocalyptic number.

It is an amenable number.

866608952 is an abundant number, since it is smaller than the sum of its proper divisors (906000448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866608952 is a wasteful number, since it uses less digits than its factorization.

866608952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9847846 (or 9847842 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 866608952 is about 29438.2226365655. Note that the first 3 decimals coincide. The cubic root of 866608952 is about 953.3983375674.

The spelling of 866608952 in words is "eight hundred sixty-six million, six hundred eight thousand, nine hundred fifty-two".