20894211 has 24 divisors (see below), whose sum is σ = 32825520. Its totient is φ = 12730176.

The previous prime is 20894197. The next prime is 20894213. The reversal of 20894211 is 11249802.

It is not a de Polignac number, because 20894211 - 2⁹ = 20893699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20894213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11685 + ... + 13353.

It is an arithmetic number, because the mean of its divisors is an integer number (1367730).

Almost surely, 2^20894211 is an apocalyptic number.

20894211 is a deficient number, since it is larger than the sum of its proper divisors (11931309).

20894211 is a wasteful number, since it uses less digits than its factorization.

20894211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 20894211 is about 4571.0185954555. The cubic root of 20894211 is about 275.4283616050.

The spelling of 20894211 in words is "twenty million, eight hundred ninety-four thousand, two hundred eleven".