20027715 has 16 divisors (see below), whose sum is σ = 32100000. Its totient is φ = 10662912.

The previous prime is 20027701. The next prime is 20027731. The reversal of 20027715 is 51772002.

It is not a de Polignac number, because 20027715 - 2⁴ = 20027699 is a prime.

It is a super-2 number, since 2×20027715² = 802218736242450, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15411 + ... + 16659.

It is an arithmetic number, because the mean of its divisors is an integer number (2006250).

Almost surely, 2^20027715 is an apocalyptic number.

20027715 is a deficient number, since it is larger than the sum of its proper divisors (12072285).

20027715 is a wasteful number, since it uses less digits than its factorization.

20027715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 20027715 is about 4475.2335134605. The cubic root of 20027715 is about 271.5670872611.

Adding to 20027715 its reverse (51772002), we get a palindrome (71799717).

The spelling of 20027715 in words is "twenty million, twenty-seven thousand, seven hundred fifteen".