498782564 has 18 divisors (see below), whose sum is σ = 1015379190. Its totient is φ = 213763872.

The previous prime is 498782561. The next prime is 498782573. The reversal of 498782564 is 465287894.

It can be written as a sum of positive squares in only one way, i.e., 498628900 + 153664 = 22330^2 + 392^2 .

It is not an unprimeable number, because it can be changed into a prime (498782561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1272209 + ... + 1272600.

It is an arithmetic number, because the mean of its divisors is an integer number (56409955).

Almost surely, 2^498782564 is an apocalyptic number.

It is an amenable number.

498782564 is an abundant number, since it is smaller than the sum of its proper divisors (516596626).

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

498782564 is a wasteful number, since it uses less digits than its factorization.

498782564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544827 (or 2544818 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 53.

The square root of 498782564 is about 22333.4404873051. The cubic root of 498782564 is about 793.0558160429.

The spelling of 498782564 in words is "four hundred ninety-eight million, seven hundred eighty-two thousand, five hundred sixty-four".