47289143 has 4 divisors (see below), whose sum is σ = 51588168. Its totient is φ = 42990120.

The previous prime is 47289139. The next prime is 47289199. The reversal of 47289143 is 34198274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47289143 - 2² = 47289139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47289097 and 47289106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47289103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2149496 + ... + 2149517.

It is an arithmetic number, because the mean of its divisors is an integer number (12897042).

Almost surely, 2^47289143 is an apocalyptic number.

47289143 is a deficient number, since it is larger than the sum of its proper divisors (4299025).

47289143 is a wasteful number, since it uses less digits than its factorization.

47289143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299024.

The product of its digits is 48384, while the sum is 38.

The square root of 47289143 is about 6876.7101872916. The cubic root of 47289143 is about 361.6211429696.

The spelling of 47289143 in words is "forty-seven million, two hundred eighty-nine thousand, one hundred forty-three".