47143423 has 4 divisors (see below), whose sum is σ = 47916328. Its totient is φ = 46370520.

The previous prime is 47143417. The next prime is 47143457. The reversal of 47143423 is 32434174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32434174 = 2 ⋅16217087.

It is a cyclic number.

It is not a de Polignac number, because 47143423 - 2⁵ = 47143391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47143391 and 47143400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47143403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386361 + ... + 386482.

It is an arithmetic number, because the mean of its divisors is an integer number (11979082).

Almost surely, 2^47143423 is an apocalyptic number.

47143423 is a deficient number, since it is larger than the sum of its proper divisors (772905).

47143423 is an equidigital number, since it uses as much as digits as its factorization.

47143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772904.

The product of its digits is 8064, while the sum is 28.

The square root of 47143423 is about 6866.1068299292. The cubic root of 47143423 is about 361.2493194114.

Adding to 47143423 its reverse (32434174), we get a palindrome (79577597).

The spelling of 47143423 in words is "forty-seven million, one hundred forty-three thousand, four hundred twenty-three".