486649866 has 16 divisors (see below), whose sum is σ = 979272864. Its totient is φ = 161221104.

The previous prime is 486649861. The next prime is 486649909. The reversal of 486649866 is 668946684.

It is not an unprimeable number, because it can be changed into a prime (486649861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247821 + ... + 249776.

It is an arithmetic number, because the mean of its divisors is an integer number (61204554).

Almost surely, 2^486649866 is an apocalyptic number.

486649866 is an abundant number, since it is smaller than the sum of its proper divisors (492622998).

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

486649866 is a wasteful number, since it uses less digits than its factorization.

486649866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497765.

The product of its digits is 11943936, while the sum is 57.

The square root of 486649866 is about 22060.1420213017. The cubic root of 486649866 is about 786.5727006009.

The spelling of 486649866 in words is "four hundred eighty-six million, six hundred forty-nine thousand, eight hundred sixty-six".