20914117 has 16 divisors (see below), whose sum is σ = 25546240. Its totient is φ = 16722288.

The previous prime is 20914099. The next prime is 20914121. The reversal of 20914117 is 71141902.

It is a cyclic number.

It is not a de Polignac number, because 20914117 - 2¹¹ = 20912069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20914091 and 20914100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7738 + ... + 10084.

It is an arithmetic number, because the mean of its divisors is an integer number (1596640).

Almost surely, 2^20914117 is an apocalyptic number.

It is an amenable number.

20914117 is a deficient number, since it is larger than the sum of its proper divisors (4632123).

20914117 is a wasteful number, since it uses less digits than its factorization.

20914117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 20914117 is about 4573.1954911200. The cubic root of 20914117 is about 275.5158010838.

The spelling of 20914117 in words is "twenty million, nine hundred fourteen thousand, one hundred seventeen".