20914911 has 12 divisors (see below), whose sum is σ = 30551040. Its totient is φ = 13786080.

The previous prime is 20914903. The next prime is 20914919. The reversal of 20914911 is 11941902.

It is an interprime number because it is at equal distance from previous prime (20914903) and next prime (20914919).

It is not a de Polignac number, because 20914911 - 2³ = 20914903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12255 + ... + 13856.

It is an arithmetic number, because the mean of its divisors is an integer number (2545920).

Almost surely, 2^20914911 is an apocalyptic number.

20914911 is a deficient number, since it is larger than the sum of its proper divisors (9636129).

20914911 is a wasteful number, since it uses less digits than its factorization.

20914911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26206 (or 26203 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 20914911 is about 4573.2823004927. The cubic root of 20914911 is about 275.5192876726.

The spelling of 20914911 in words is "twenty million, nine hundred fourteen thousand, nine hundred eleven".