490843 has 4 divisors (see below), whose sum is σ = 512208. Its totient is φ = 469480.

The previous prime is 490837. The next prime is 490849. The reversal of 490843 is 348094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348094 = 2 ⋅174047.

It is an interprime number because it is at equal distance from previous prime (490837) and next prime (490849).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490849) 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, 10648 + ... + 10693.

It is an arithmetic number, because the mean of its divisors is an integer number (128052).

2⁴⁹⁰⁸⁴³ is an apocalyptic number.

490843 is a deficient number, since it is larger than the sum of its proper divisors (21365).

490843 is a wasteful number, since it uses less digits than its factorization.

490843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21364.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 490843 is about 700.6018840968. The cubic root of 490843 is about 78.8825365366.

The spelling of 490843 in words is "four hundred ninety thousand, eight hundred forty-three".