20106963 has 6 divisors (see below), whose sum is σ = 29043404. Its totient is φ = 13404636.

The previous prime is 20106949. The next prime is 20106973. The reversal of 20106963 is 36960102.

It is a happy number.

It is not a de Polignac number, because 20106963 - 2²⁴ = 3329747 is a prime.

It is a super-2 number, since 2×20106963² = 808579922166738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20106973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117045 + ... + 1117062.

Almost surely, 2^20106963 is an apocalyptic number.

20106963 is a deficient number, since it is larger than the sum of its proper divisors (8936441).

20106963 is a wasteful number, since it uses less digits than its factorization.

20106963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234113 (or 2234110 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 20106963 is about 4484.0788351678. The cubic root of 20106963 is about 271.9248053028.

The spelling of 20106963 in words is "twenty million, one hundred six thousand, nine hundred sixty-three".