20963814 has 16 divisors (see below), whose sum is σ = 41983920. Its totient is φ = 6978560.

The previous prime is 20963807. The next prime is 20963837. The reversal of 20963814 is 41836902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3694 + ... + 7454.

It is an arithmetic number, because the mean of its divisors is an integer number (2623995).

Almost surely, 2^20963814 is an apocalyptic number.

20963814 is an abundant number, since it is smaller than the sum of its proper divisors (21020106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20963814 is a wasteful number, since it uses less digits than its factorization.

20963814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 20963814 is about 4578.6257763657. The cubic root of 20963814 is about 275.7338591807.

The spelling of 20963814 in words is "twenty million, nine hundred sixty-three thousand, eight hundred fourteen".