20934963 has 32 divisors (see below), whose sum is σ = 35665920. Its totient is φ = 11888640.

The previous prime is 20934961. The next prime is 20935009. The reversal of 20934963 is 36943902.

It is a happy number.

It is not a de Polignac number, because 20934963 - 2¹ = 20934961 is a prime.

It is a super-2 number, since 2×20934963² = 876545351622738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20934961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48358 + ... + 48788.

It is an arithmetic number, because the mean of its divisors is an integer number (1114560).

Almost surely, 2^20934963 is an apocalyptic number.

20934963 is a deficient number, since it is larger than the sum of its proper divisors (14730957).

20934963 is a wasteful number, since it uses less digits than its factorization.

20934963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 20934963 is about 4575.4740737983. The cubic root of 20934963 is about 275.6073101702.

It can be divided in two parts, 2093 and 4963, that added together give a square (7056 = 84²).

The spelling of 20934963 in words is "twenty million, nine hundred thirty-four thousand, nine hundred sixty-three".