20700585 has 12 divisors (see below), whose sum is σ = 35881092. Its totient is φ = 11040288.

The previous prime is 20700553. The next prime is 20700593. The reversal of 20700585 is 58500702.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3956121 + 16744464 = 1989^2 + 4092^2 .

It is not a de Polignac number, because 20700585 - 2⁵ = 20700553 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229962 + ... + 230051.

It is an arithmetic number, because the mean of its divisors is an integer number (2990091).

Almost surely, 2^20700585 is an apocalyptic number.

It is an amenable number.

20700585 is a deficient number, since it is larger than the sum of its proper divisors (15180507).

20700585 is a wasteful number, since it uses less digits than its factorization.

20700585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460024 (or 460021 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 20700585 is about 4549.7895555729. The cubic root of 20700585 is about 274.5749245544.

The spelling of 20700585 in words is "twenty million, seven hundred thousand, five hundred eighty-five".