20726027 has 4 divisors (see below), whose sum is σ = 23686896. Its totient is φ = 17765160.

The previous prime is 20725993. The next prime is 20726029. The reversal of 20726027 is 72062702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72062702 = 2 ⋅36031351.

It is not a de Polignac number, because 20726027 - 2¹² = 20721931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20725987 and 20726005.

It is not an unprimeable number, because it can be changed into a prime (20726029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1480424 + ... + 1480437.

It is an arithmetic number, because the mean of its divisors is an integer number (5921724).

Almost surely, 2^20726027 is an apocalyptic number.

20726027 is a deficient number, since it is larger than the sum of its proper divisors (2960869).

20726027 is an equidigital number, since it uses as much as digits as its factorization.

20726027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960868.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20726027 is about 4552.5846505035. The cubic root of 20726027 is about 274.6873670328.

Adding to 20726027 its reverse (72062702), we get a palindrome (92788729).

The spelling of 20726027 in words is "twenty million, seven hundred twenty-six thousand, twenty-seven".