20286959 has 16 divisors (see below), whose sum is σ = 25391616. Its totient is φ = 15746400.

The previous prime is 20286941. The next prime is 20286977. The reversal of 20286959 is 95968202.

It is an interprime number because it is at equal distance from previous prime (20286941) and next prime (20286977).

It is a cyclic number.

It is not a de Polignac number, because 20286959 - 2⁸ = 20286703 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20286359) 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, 37229 + ... + 37769.

It is an arithmetic number, because the mean of its divisors is an integer number (1586976).

Almost surely, 2^20286959 is an apocalyptic number.

20286959 is a deficient number, since it is larger than the sum of its proper divisors (5104657).

20286959 is a wasteful number, since it uses less digits than its factorization.

20286959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 20286959 is about 4504.1046835081. The cubic root of 20286959 is about 272.7338127354.

The spelling of 20286959 in words is "twenty million, two hundred eighty-six thousand, nine hundred fifty-nine".