20738963 has 16 divisors (see below), whose sum is σ = 25516224. Its totient is φ = 16450560.

The previous prime is 20738957. The next prime is 20738987. The reversal of 20738963 is 36983702.

It is not a de Polignac number, because 20738963 - 2¹⁰ = 20737939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20738903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5831 + ... + 8687.

It is an arithmetic number, because the mean of its divisors is an integer number (1594764).

Almost surely, 2^20738963 is an apocalyptic number.

20738963 is a deficient number, since it is larger than the sum of its proper divisors (4777261).

20738963 is a wasteful number, since it uses less digits than its factorization.

20738963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 20738963 is about 4554.0051602957. The cubic root of 20738963 is about 274.7445031926.

The spelling of 20738963 in words is "twenty million, seven hundred thirty-eight thousand, nine hundred sixty-three".