47257427 has 12 divisors (see below), whose sum is σ = 57003696. Its totient is φ = 38372400.

The previous prime is 47257393. The next prime is 47257481. The reversal of 47257427 is 72475274.

47257427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47257427 - 2¹⁰ = 47256403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47257027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6824 + ... + 11877.

It is an arithmetic number, because the mean of its divisors is an integer number (4750308).

Almost surely, 2^47257427 is an apocalyptic number.

47257427 is a deficient number, since it is larger than the sum of its proper divisors (9746269).

47257427 is a wasteful number, since it uses less digits than its factorization.

47257427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18746 (or 18727 counting only the distinct ones).

The product of its digits is 109760, while the sum is 38.

The square root of 47257427 is about 6874.4037559631. The cubic root of 47257427 is about 361.5402805668.

The spelling of 47257427 in words is "forty-seven million, two hundred fifty-seven thousand, four hundred twenty-seven".