20959741 has 12 divisors (see below), whose sum is σ = 23327136. Its totient is φ = 18815720.

The previous prime is 20959711. The next prime is 20959777. The reversal of 20959741 is 14795902.

It is not a de Polignac number, because 20959741 - 2⁷ = 20959613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20959741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20959711) 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, 9000 + ... + 11086.

It is an arithmetic number, because the mean of its divisors is an integer number (1943928).

Almost surely, 2^20959741 is an apocalyptic number.

It is an amenable number.

20959741 is a deficient number, since it is larger than the sum of its proper divisors (2367395).

20959741 is a wasteful number, since it uses less digits than its factorization.

20959741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 20959741 is about 4578.1809706476. The cubic root of 20959741 is about 275.7160008407.

The spelling of 20959741 in words is "twenty million, nine hundred fifty-nine thousand, seven hundred forty-one".