47147427 has 10 divisors (see below), whose sum is σ = 70430228. Its totient is φ = 31431564.

The previous prime is 47147383. The next prime is 47147459. The reversal of 47147427 is 72474174.

It is not a de Polignac number, because 47147427 - 2⁶ = 47147363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47147391 and 47147400.

It is not an unprimeable number, because it can be changed into a prime (47147467) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 290953 + ... + 291114.

Almost surely, 2^47147427 is an apocalyptic number.

47147427 is a deficient number, since it is larger than the sum of its proper divisors (23282801).

47147427 is an equidigital number, since it uses as much as digits as its factorization.

47147427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582079 (or 582070 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 47147427 is about 6866.3984009086. The cubic root of 47147427 is about 361.2595463687.

It can be divided in two parts, 47147 and 427, that added together give a palindrome (47574).

The spelling of 47147427 in words is "forty-seven million, one hundred forty-seven thousand, four hundred twenty-seven".