486991000 has 32 divisors (see below), whose sum is σ = 1139561280. Its totient is φ = 194796000.

The previous prime is 486990991. The next prime is 486991007. The reversal of 486991000 is 199684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486991007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242496 + ... + 244495.

It is an arithmetic number, because the mean of its divisors is an integer number (35611290).

Almost surely, 2^486991000 is an apocalyptic number.

486991000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

486991000 is an abundant number, since it is smaller than the sum of its proper divisors (652570280).

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

486991000 is a wasteful number, since it uses less digits than its factorization.

486991000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487012 (or 486998 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 486991000 is about 22067.8725753073. The cubic root of 486991000 is about 786.7564494226.

The spelling of 486991000 in words is "four hundred eighty-six million, nine hundred ninety-one thousand".