963638 has 12 divisors (see below), whose sum is σ = 1565748. Its totient is φ = 444600.

The previous prime is 963629. The next prime is 963643. The reversal of 963638 is 836369.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 963598 and 963607.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1088 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (130479).

2⁹⁶³⁶³⁸ is an apocalyptic number.

963638 is a deficient number, since it is larger than the sum of its proper divisors (602110).

963638 is a wasteful number, since it uses less digits than its factorization.

963638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2866 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 963638 is about 981.6506506899. The cubic root of 963638 is about 98.7729381100.

The spelling of 963638 in words is "nine hundred sixty-three thousand, six hundred thirty-eight".