866860248 has 32 divisors (see below), whose sum is σ = 2261376000. Its totient is φ = 276390048.

The previous prime is 866860201. The next prime is 866860249. The reversal of 866860248 is 842068668.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 866860197 and 866860206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866860249) 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 7 ways as a sum of consecutive naturals, for example, 784648 + ... + 785751.

It is an arithmetic number, because the mean of its divisors is an integer number (70668000).

Almost surely, 2^866860248 is an apocalyptic number.

It is an amenable number.

866860248 is an abundant number, since it is smaller than the sum of its proper divisors (1394515752).

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

866860248 is a wasteful number, since it uses less digits than its factorization.

866860248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570431 (or 1570427 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 866860248 is about 29442.4905196554. The cubic root of 866860248 is about 953.4904829477.

The spelling of 866860248 in words is "eight hundred sixty-six million, eight hundred sixty thousand, two hundred forty-eight".