20593641 has 16 divisors (see below), whose sum is σ = 28712960. Its totient is φ = 13113360.

The previous prime is 20593633. The next prime is 20593649. The reversal of 20593641 is 14639502.

It is an interprime number because it is at equal distance from previous prime (20593633) and next prime (20593649).

It is not a de Polignac number, because 20593641 - 2³ = 20593633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20593599 and 20593608.

It is not an unprimeable number, because it can be changed into a prime (20593649) 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, 5946 + ... + 8748.

It is an arithmetic number, because the mean of its divisors is an integer number (1794560).

Almost surely, 2^20593641 is an apocalyptic number.

It is an amenable number.

20593641 is a deficient number, since it is larger than the sum of its proper divisors (8119319).

20593641 is a wasteful number, since it uses less digits than its factorization.

20593641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 20593641 is about 4538.0217055453. The cubic root of 20593641 is about 274.1012687989.

The spelling of 20593641 in words is "twenty million, five hundred ninety-three thousand, six hundred forty-one".