663652 has 12 divisors (see below), whose sum is σ = 1267056. Its totient is φ = 301640.

The previous prime is 663631. The next prime is 663653. The reversal of 663652 is 256366.

It is a self number, because there is not a number n which added to its sum of digits gives 663652.

It is not an unprimeable number, because it can be changed into a prime (663653) 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, 7498 + ... + 7585.

It is an arithmetic number, because the mean of its divisors is an integer number (105588).

2⁶⁶³⁶⁵² is an apocalyptic number.

It is an amenable number.

663652 is a deficient number, since it is larger than the sum of its proper divisors (603404).

663652 is a wasteful number, since it uses less digits than its factorization.

663652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15098 (or 15096 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 663652 is about 814.6483904115. The cubic root of 663652 is about 87.2261697959.

The spelling of 663652 in words is "six hundred sixty-three thousand, six hundred fifty-two".