498564 has 36 divisors (see below), whose sum is σ = 1375920. Its totient is φ = 150960.

The previous prime is 498557. The next prime is 498577. The reversal of 498564 is 465894.

498564 is a `hidden beast` number, since 4 + 98 + 564 = 666.

498564 is nontrivially palindromic in base 15.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

Its product of digits (34560) is a multiple of the sum of its prime factors (1280).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234 + ... + 1025.

It is an arithmetic number, because the mean of its divisors is an integer number (38220).

2⁴⁹⁸⁵⁶⁴ is an apocalyptic number.

498564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

498564 is an abundant number, since it is smaller than the sum of its proper divisors (877356).

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

498564 is a wasteful number, since it uses less digits than its factorization.

498564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1275 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 498564 is about 706.0906457389. The cubic root of 498564 is about 79.2939961435.

The spelling of 498564 in words is "four hundred ninety-eight thousand, five hundred sixty-four".