866308852 has 12 divisors (see below), whose sum is σ = 1519058016. Its totient is φ = 432292280.

The previous prime is 866308847. The next prime is 866308853. The reversal of 866308852 is 258803668.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866308853) 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, 213274 + ... + 217297.

It is an arithmetic number, because the mean of its divisors is an integer number (126588168).

Almost surely, 2^866308852 is an apocalyptic number.

It is an amenable number.

866308852 is a deficient number, since it is larger than the sum of its proper divisors (652749164).

866308852 is a wasteful number, since it uses less digits than its factorization.

866308852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431078 (or 431076 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 866308852 is about 29433.1250804260. The cubic root of 866308852 is about 953.2882733632.

The spelling of 866308852 in words is "eight hundred sixty-six million, three hundred eight thousand, eight hundred fifty-two".