47427439 has 16 divisors (see below), whose sum is σ = 51266560. Its totient is φ = 43740000.

The previous prime is 47427437. The next prime is 47427481. The reversal of 47427439 is 93472474.

It is a cyclic number.

It is not a de Polignac number, because 47427439 - 2¹ = 47427437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47427437) 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, 174874 + ... + 175144.

It is an arithmetic number, because the mean of its divisors is an integer number (3204160).

Almost surely, 2^47427439 is an apocalyptic number.

47427439 is a deficient number, since it is larger than the sum of its proper divisors (3839121).

47427439 is a wasteful number, since it uses less digits than its factorization.

47427439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502.

The product of its digits is 169344, while the sum is 40.

The square root of 47427439 is about 6886.7582359191. The cubic root of 47427439 is about 361.9733174273.

The spelling of 47427439 in words is "forty-seven million, four hundred twenty-seven thousand, four hundred thirty-nine".