490617 has 14 divisors (see below), whose sum is σ = 736682. Its totient is φ = 326592.

The previous prime is 490591. The next prime is 490619. The reversal of 490617 is 716094.

490617 is a `hidden beast` number, since 49 + 0 + 617 = 666.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 104976 = 621^2 + 324^2 .

It is a de Polignac number, because none of the positive numbers 2^k-490617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 490617.

It is not an unprimeable number, because it can be changed into a prime (490619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 393 + ... + 1065.

2⁴⁹⁰⁶¹⁷ is an apocalyptic number.

It is an amenable number.

490617 is a deficient number, since it is larger than the sum of its proper divisors (246065).

490617 is an frugal number, since it uses more digits than its factorization.

490617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 490617 is about 700.4405756379. The cubic root of 490617 is about 78.8704279872.

The spelling of 490617 in words is "four hundred ninety thousand, six hundred seventeen".