20963854 has 8 divisors (see below), whose sum is σ = 31604400. Its totient is φ = 10429056.

The previous prime is 20963851. The next prime is 20963869. The reversal of 20963854 is 45836902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20963851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25939 + ... + 26734.

It is an arithmetic number, because the mean of its divisors is an integer number (3950550).

Almost surely, 2^20963854 is an apocalyptic number.

20963854 is a deficient number, since it is larger than the sum of its proper divisors (10640546).

20963854 is a wasteful number, since it uses less digits than its factorization.

20963854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52874.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 20963854 is about 4578.6301444864. The cubic root of 20963854 is about 275.7340345518.

The spelling of 20963854 in words is "twenty million, nine hundred sixty-three thousand, eight hundred fifty-four".