663435 has 24 divisors (see below), whose sum is σ = 1201824. Its totient is φ = 337920.

The previous prime is 663409. The next prime is 663437. The reversal of 663435 is 534366.

It is not a de Polignac number, because 663435 - 2⁶ = 663371 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6³ + 6⁶ + 4⁹ + 3¹¹ + 3¹¹ + 5³ .

It is a junction number, because it is equal to n+sod(n) for n = 663399 and 663408.

It is not an unprimeable number, because it can be changed into a prime (663437) 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 23 ways as a sum of consecutive naturals, for example, 715 + ... + 1355.

It is an arithmetic number, because the mean of its divisors is an integer number (50076).

2⁶⁶³⁴³⁵ is an apocalyptic number.

663435 is a deficient number, since it is larger than the sum of its proper divisors (538389).

663435 is a wasteful number, since it uses less digits than its factorization.

663435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 672 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 663435 is about 814.5151932285. The cubic root of 663435 is about 87.2166617293.

The spelling of 663435 in words is "six hundred sixty-three thousand, four hundred thirty-five".