866604486 has 16 divisors (see below), whose sum is σ = 1890773568. Its totient is φ = 262607400.

The previous prime is 866604469. The next prime is 866604517. The reversal of 866604486 is 684406668.

It is a congruent number.

It is an unprimeable number.

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, 6565120 + ... + 6565251.

It is an arithmetic number, because the mean of its divisors is an integer number (118173348).

Almost surely, 2^866604486 is an apocalyptic number.

866604486 is an abundant number, since it is smaller than the sum of its proper divisors (1024169082).

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

866604486 is a wasteful number, since it uses less digits than its factorization.

866604486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130387.

The product of its (nonzero) digits is 1327104, while the sum is 48.

The square root of 866604486 is about 29438.1467827036. The cubic root of 866604486 is about 953.3966998105.

The spelling of 866604486 in words is "eight hundred sixty-six million, six hundred four thousand, four hundred eighty-six".