490693 has 4 divisors (see below), whose sum is σ = 560800. Its totient is φ = 420588.

The previous prime is 490663. The next prime is 490697. The reversal of 490693 is 396094.

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, and also an emirpimes, since its reverse is a distinct semiprime: 396094 = 2 ⋅198047.

It is not a de Polignac number, because 490693 - 2⁵ = 490661 is a prime.

It is a Duffinian number.

490693 is a modest number, since divided by 693 gives 49 as remainder.

490693 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490697) 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, 35043 + ... + 35056.

It is an arithmetic number, because the mean of its divisors is an integer number (140200).

2⁴⁹⁰⁶⁹³ is an apocalyptic number.

It is an amenable number.

490693 is a deficient number, since it is larger than the sum of its proper divisors (70107).

490693 is an equidigital number, since it uses as much as digits as its factorization.

490693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70106.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 490693 is about 700.4948251058. The cubic root of 490693 is about 78.8745003037.

The spelling of 490693 in words is "four hundred ninety thousand, six hundred ninety-three".