866688348 has 12 divisors (see below), whose sum is σ = 2022272840. Its totient is φ = 288896112.

The previous prime is 866688343. The next prime is 866688379. The reversal of 866688348 is 843886668.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×866688348² = 1502297385117938208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866688343) 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, 36112003 + ... + 36112026.

Almost surely, 2^866688348 is an apocalyptic number.

It is an amenable number.

866688348 is an abundant number, since it is smaller than the sum of its proper divisors (1155584492).

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

866688348 is a wasteful number, since it uses less digits than its factorization.

866688348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72224036 (or 72224034 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 57.

The square root of 866688348 is about 29439.5711245935. The cubic root of 866688348 is about 953.4274524689.

The spelling of 866688348 in words is "eight hundred sixty-six million, six hundred eighty-eight thousand, three hundred forty-eight".