498657 has 4 divisors (see below), whose sum is σ = 664880. Its totient is φ = 332436.

The previous prime is 498653. The next prime is 498679. The reversal of 498657 is 756894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 498657 - 2² = 498653 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (498653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83107 + ... + 83112.

It is an arithmetic number, because the mean of its divisors is an integer number (166220).

2⁴⁹⁸⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

498657 is a deficient number, since it is larger than the sum of its proper divisors (166223).

498657 is a wasteful number, since it uses less digits than its factorization.

498657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166222.

The product of its digits is 60480, while the sum is 39.

The square root of 498657 is about 706.1564982353. The cubic root of 498657 is about 79.2989262248.

The spelling of 498657 in words is "four hundred ninety-eight thousand, six hundred fifty-seven".