20932085 has 8 divisors (see below), whose sum is σ = 25592760. Its totient is φ = 16429504.

The previous prime is 20932069. The next prime is 20932103. The reversal of 20932085 is 58023902.

It can be written as a sum of positive squares in 4 ways, for example, as 7086244 + 13845841 = 2662^2 + 3721^2 .

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 20932085 - 2⁴ = 20932069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39230 + ... + 39759.

It is an arithmetic number, because the mean of its divisors is an integer number (3199095).

Almost surely, 2^20932085 is an apocalyptic number.

It is an amenable number.

20932085 is a deficient number, since it is larger than the sum of its proper divisors (4660675).

20932085 is an equidigital number, since it uses as much as digits as its factorization.

20932085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79047.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20932085 is about 4575.1595600591. The cubic root of 20932085 is about 275.5946800357.

Adding to 20932085 its reverse (58023902), we get a palindrome (78955987).

The spelling of 20932085 in words is "twenty million, nine hundred thirty-two thousand, eighty-five".