47449723 has 4 divisors (see below), whose sum is σ = 47499760. Its totient is φ = 47399688.

The previous prime is 47449709. The next prime is 47449741. The reversal of 47449723 is 32794474.

47449723 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 47449723 - 2⁹ = 47449211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47449763) 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, 23568 + ... + 25501.

It is an arithmetic number, because the mean of its divisors is an integer number (11874940).

Almost surely, 2^47449723 is an apocalyptic number.

47449723 is a deficient number, since it is larger than the sum of its proper divisors (50037).

47449723 is an equidigital number, since it uses as much as digits as its factorization.

47449723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50036.

The product of its digits is 169344, while the sum is 40.

The square root of 47449723 is about 6888.3759334113. The cubic root of 47449723 is about 362.0300001591.

The spelling of 47449723 in words is "forty-seven million, four hundred forty-nine thousand, seven hundred twenty-three".