20270047 has 8 divisors (see below), whose sum is σ = 23242752. Its totient is φ = 17316600.

The previous prime is 20270039. The next prime is 20270051. The reversal of 20270047 is 74007202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20270047 - 2³ = 20270039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20270027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479 + ... + 6832.

It is an arithmetic number, because the mean of its divisors is an integer number (2905344).

Almost surely, 2^20270047 is an apocalyptic number.

20270047 is a deficient number, since it is larger than the sum of its proper divisors (2972705).

20270047 is an equidigital number, since it uses as much as digits as its factorization.

20270047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9629.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 20270047 is about 4502.2268934384. The cubic root of 20270047 is about 272.6580044859.

Adding to 20270047 its reverse (74007202), we get a palindrome (94277249).

The spelling of 20270047 in words is "twenty million, two hundred seventy thousand, forty-seven".