508984866 has 48 divisors (see below), whose sum is σ = 1196375544. Its totient is φ = 155457792.

The previous prime is 508984849. The next prime is 508984867. The reversal of 508984866 is 668489805.

It is a happy number.

508984866 is a `hidden beast` number, since 508 + 98 + 48 + 6 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 496175625 + 12809241 = 22275^2 + 3579^2 .

It is not an unprimeable number, because it can be changed into a prime (508984867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24120 + ... + 39996.

Almost surely, 2^508984866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 508984866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598187772).

508984866 is an abundant number, since it is smaller than the sum of its proper divisors (687390678).

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

508984866 is a wasteful number, since it uses less digits than its factorization.

508984866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16035 (or 16032 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The square root of 508984866 is about 22560.6929414856. The cubic root of 508984866 is about 798.4265249577.

The spelling of 508984866 in words is "five hundred eight million, nine hundred eighty-four thousand, eight hundred sixty-six".