496821 has 8 divisors (see below), whose sum is σ = 713440. Its totient is φ = 305712.

The previous prime is 496817. The next prime is 496841. The reversal of 496821 is 128694.

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

It is not a de Polignac number, because 496821 - 2² = 496817 is a prime.

It is a super-2 number, since 2×496821² = 493662212082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (496841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6331 + ... + 6408.

It is an arithmetic number, because the mean of its divisors is an integer number (89180).

2⁴⁹⁶⁸²¹ is an apocalyptic number.

It is an amenable number.

496821 is a deficient number, since it is larger than the sum of its proper divisors (216619).

496821 is a wasteful number, since it uses less digits than its factorization.

496821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12755.

The product of its digits is 3456, while the sum is 30.

The square root of 496821 is about 704.8553043001. The cubic root of 496821 is about 79.2014832392.

The spelling of 496821 in words is "four hundred ninety-six thousand, eight hundred twenty-one".