47446823 has 4 divisors (see below), whose sum is σ = 47463720. Its totient is φ = 47429928.

The previous prime is 47446811. The next prime is 47446853. The reversal of 47446823 is 32864474.

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 47446823 - 2¹⁸ = 47184679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47446853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113 + ... + 10226.

It is an arithmetic number, because the mean of its divisors is an integer number (11865930).

Almost surely, 2^47446823 is an apocalyptic number.

47446823 is a deficient number, since it is larger than the sum of its proper divisors (16897).

47446823 is a wasteful number, since it uses less digits than its factorization.

47446823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16896.

The product of its digits is 129024, while the sum is 38.

The square root of 47446823 is about 6888.1654306499. The cubic root of 47446823 is about 362.0226245742.

The spelling of 47446823 in words is "forty-seven million, four hundred forty-six thousand, eight hundred twenty-three".