663017 has 8 divisors (see below), whose sum is σ = 719136. Its totient is φ = 608832.

The previous prime is 663007. The next prime is 663031. The reversal of 663017 is 710366.

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

It is a cyclic number.

It is not a de Polignac number, because 663017 - 2⁴ = 663001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662983 and 663001.

It is not an unprimeable number, because it can be changed into a prime (663007) 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, 278 + ... + 1184.

It is an arithmetic number, because the mean of its divisors is an integer number (89892).

2⁶⁶³⁰¹⁷ is an apocalyptic number.

It is an amenable number.

663017 is a deficient number, since it is larger than the sum of its proper divisors (56119).

663017 is a wasteful number, since it uses less digits than its factorization.

663017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 663017 is about 814.2585584444. The cubic root of 663017 is about 87.1983408067.

The spelling of 663017 in words is "six hundred sixty-three thousand, seventeen".