866704090 has 16 divisors (see below), whose sum is σ = 1782934272. Its totient is φ = 297155664.

The previous prime is 866704079. The next prime is 866704099. The reversal of 866704090 is 90407668.

It is not an unprimeable number, because it can be changed into a prime (866704099) 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, 6190674 + ... + 6190813.

It is an arithmetic number, because the mean of its divisors is an integer number (111433392).

Almost surely, 2^866704090 is an apocalyptic number.

866704090 is an abundant number, since it is smaller than the sum of its proper divisors (916230182).

866704090 is a wasteful number, since it uses less digits than its factorization.

866704090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381501.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 866704090 is about 29439.8384846113. The cubic root of 866704090 is about 953.4332249261.

The spelling of 866704090 in words is "eight hundred sixty-six million, seven hundred four thousand, ninety".