20963632 has 20 divisors (see below), whose sum is σ = 40890736. Its totient is φ = 10411200.

The previous prime is 20963597. The next prime is 20963633. The reversal of 20963632 is 23636902.

It is a junction number, because it is equal to n+sod(n) for n = 20963594 and 20963603.

It is not an unprimeable number, because it can be changed into a prime (20963633) 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 3 ways as a sum of consecutive naturals, for example, 1923 + ... + 6754.

Almost surely, 2^20963632 is an apocalyptic number.

It is an amenable number.

20963632 is a deficient number, since it is larger than the sum of its proper divisors (19927104).

20963632 is a wasteful number, since it uses less digits than its factorization.

20963632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8836 (or 8830 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 20963632 is about 4578.6059013634. The cubic root of 20963632 is about 275.7330612389.

The spelling of 20963632 in words is "twenty million, nine hundred sixty-three thousand, six hundred thirty-two".