20963672 has 16 divisors (see below), whose sum is σ = 41016240. Its totient is φ = 10026016.

The previous prime is 20963671. The next prime is 20963681. The reversal of 20963672 is 27636902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20963671) 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, 56783 + ... + 57150.

It is an arithmetic number, because the mean of its divisors is an integer number (2563515).

Almost surely, 2^20963672 is an apocalyptic number.

It is an amenable number.

20963672 is a deficient number, since it is larger than the sum of its proper divisors (20052568).

20963672 is a wasteful number, since it uses less digits than its factorization.

20963672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113962 (or 113958 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 20963672 is about 4578.6102695032. The cubic root of 20963672 is about 275.7332366111.

The spelling of 20963672 in words is "twenty million, nine hundred sixty-three thousand, six hundred seventy-two".