20201963 has 8 divisors (see below), whose sum is σ = 21191232. Its totient is φ = 19236096.

The previous prime is 20201939. The next prime is 20201969. The reversal of 20201963 is 36910202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20201963 - 2²⁴ = 3424747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4070 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (2648904).

Almost surely, 2^20201963 is an apocalyptic number.

20201963 is a deficient number, since it is larger than the sum of its proper divisors (989269).

20201963 is a wasteful number, since it uses less digits than its factorization.

20201963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11701.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20201963 is about 4494.6593864274. The cubic root of 20201963 is about 272.3523898253.

The spelling of 20201963 in words is "twenty million, two hundred one thousand, nine hundred sixty-three".