47638427 has 8 divisors (see below), whose sum is σ = 48538464. Its totient is φ = 46747008.

The previous prime is 47638421. The next prime is 47638457. The reversal of 47638427 is 72483674.

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

It is a cyclic number.

It is not a de Polignac number, because 47638427 - 2¹² = 47634331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47638421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9593 + ... + 13685.

It is an arithmetic number, because the mean of its divisors is an integer number (6067308).

Almost surely, 2^47638427 is an apocalyptic number.

47638427 is a deficient number, since it is larger than the sum of its proper divisors (900037).

47638427 is a wasteful number, since it uses less digits than its factorization.

47638427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309.

The product of its digits is 225792, while the sum is 41.

The square root of 47638427 is about 6902.0596201424. The cubic root of 47638427 is about 362.5092874355.

The spelling of 47638427 in words is "forty-seven million, six hundred thirty-eight thousand, four hundred twenty-seven".