47243971 has 8 divisors (see below), whose sum is σ = 48717504. Its totient is φ = 45787560.

The previous prime is 47243957. The next prime is 47243981. The reversal of 47243971 is 17934274.

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 47243971 - 2⁵ = 47243939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47243971.

It is not an unprimeable number, because it can be changed into a prime (47243941) 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, 1440 + ... + 9826.

It is an arithmetic number, because the mean of its divisors is an integer number (6089688).

Almost surely, 2^47243971 is an apocalyptic number.

47243971 is a deficient number, since it is larger than the sum of its proper divisors (1473533).

47243971 is a wasteful number, since it uses less digits than its factorization.

47243971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8561.

The product of its digits is 42336, while the sum is 37.

The square root of 47243971 is about 6873.4249832234. The cubic root of 47243971 is about 361.5059625196.

The spelling of 47243971 in words is "forty-seven million, two hundred forty-three thousand, nine hundred seventy-one".