498561 has 8 divisors (see below), whose sum is σ = 759744. Its totient is φ = 284880.

The previous prime is 498557. The next prime is 498577. The reversal of 498561 is 165894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 498561 - 2² = 498557 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (498521) 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, 11850 + ... + 11891.

It is an arithmetic number, because the mean of its divisors is an integer number (94968).

2⁴⁹⁸⁵⁶¹ is an apocalyptic number.

It is an amenable number.

498561 is a deficient number, since it is larger than the sum of its proper divisors (261183).

498561 is a wasteful number, since it uses less digits than its factorization.

498561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23751.

The product of its digits is 8640, while the sum is 33.

The square root of 498561 is about 706.0885213626. The cubic root of 498561 is about 79.2938370984.

It can be divided in two parts, 498 and 561, that multiplied together give a triangular number (279378 = T₇₄₇).

The spelling of 498561 in words is "four hundred ninety-eight thousand, five hundred sixty-one".