20847027 has 16 divisors (see below), whose sum is σ = 29111040. Its totient is φ = 13252512.

The previous prime is 20847017. The next prime is 20847053. The reversal of 20847027 is 72074802.

It is not a de Polignac number, because 20847027 - 2⁶ = 20846963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20846985 and 20847003.

It is not an unprimeable number, because it can be changed into a prime (20847007) 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, 5778 + ... + 8664.

It is an arithmetic number, because the mean of its divisors is an integer number (1819440).

Almost surely, 2^20847027 is an apocalyptic number.

20847027 is a deficient number, since it is larger than the sum of its proper divisors (8264013).

20847027 is a wasteful number, since it uses less digits than its factorization.

20847027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 20847027 is about 4565.8544654862. The cubic root of 20847027 is about 275.2208781920.

The spelling of 20847027 in words is "twenty million, eight hundred forty-seven thousand, twenty-seven".