20093959 has 8 divisors (see below), whose sum is σ = 20397168. Its totient is φ = 19793280.

The previous prime is 20093947. The next prime is 20093981. The reversal of 20093959 is 95939002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20093959 - 2¹⁵ = 20061191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20093929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20079 + ... + 21055.

It is an arithmetic number, because the mean of its divisors is an integer number (2549646).

Almost surely, 2^20093959 is an apocalyptic number.

20093959 is a deficient number, since it is larger than the sum of its proper divisors (303209).

20093959 is a wasteful number, since it uses less digits than its factorization.

20093959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 20093959 is about 4482.6285815356. The cubic root of 20093959 is about 271.8661710085.

The spelling of 20093959 in words is "twenty million, ninety-three thousand, nine hundred fifty-nine".