47631947 has 8 divisors (see below), whose sum is σ = 52498992. Its totient is φ = 42854400.

The previous prime is 47631931. The next prime is 47631953. The reversal of 47631947 is 74913674.

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 47631947 - 2⁴ = 47631931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47633947) 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, 21254 + ... + 23387.

It is an arithmetic number, because the mean of its divisors is an integer number (6562374).

Almost surely, 2^47631947 is an apocalyptic number.

47631947 is a deficient number, since it is larger than the sum of its proper divisors (4867045).

47631947 is a wasteful number, since it uses less digits than its factorization.

47631947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44749.

The product of its digits is 127008, while the sum is 41.

The square root of 47631947 is about 6901.5901790819. The cubic root of 47631947 is about 362.4928499581.

It can be divided in two parts, 476 and 31947, that added together give a palindrome (32423).

The spelling of 47631947 in words is "forty-seven million, six hundred thirty-one thousand, nine hundred forty-seven".