47724743 has 4 divisors (see below), whose sum is σ = 52063368. Its totient is φ = 43386120.

The previous prime is 47724739. The next prime is 47724757. The reversal of 47724743 is 34742774.

It is a happy number.

47724743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47724743 - 2² = 47724739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47724697 and 47724706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47724773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2169296 + ... + 2169317.

It is an arithmetic number, because the mean of its divisors is an integer number (13015842).

Almost surely, 2^47724743 is an apocalyptic number.

47724743 is a deficient number, since it is larger than the sum of its proper divisors (4338625).

47724743 is a wasteful number, since it uses less digits than its factorization.

47724743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338624.

The product of its digits is 131712, while the sum is 38.

The square root of 47724743 is about 6908.3097064333. The cubic root of 47724743 is about 362.7280986929.

It can be divided in two parts, 477247 and 43, that multiplied together give a triangular number (20521621 = T₆₄₀₆).

The spelling of 47724743 in words is "forty-seven million, seven hundred twenty-four thousand, seven hundred forty-three".