47646347 has 4 divisors (see below), whose sum is σ = 54452976. Its totient is φ = 40839720.

The previous prime is 47646341. The next prime is 47646377. The reversal of 47646347 is 74364674.

47646347 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, and also an emirpimes, since its reverse is a distinct semiprime: 74364674 = 2 ⋅37182337.

It is a cyclic number.

It is not a de Polignac number, because 47646347 - 2⁴ = 47646331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47646341) 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, 3403304 + ... + 3403317.

It is an arithmetic number, because the mean of its divisors is an integer number (13613244).

Almost surely, 2^47646347 is an apocalyptic number.

47646347 is a deficient number, since it is larger than the sum of its proper divisors (6806629).

47646347 is an equidigital number, since it uses as much as digits as its factorization.

47646347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6806628.

The product of its digits is 338688, while the sum is 41.

The square root of 47646347 is about 6902.6333380819. The cubic root of 47646347 is about 362.5293756615.

It can be divided in two parts, 4764 and 6347, that added together give a palindrome (11111).

The spelling of 47646347 in words is "forty-seven million, six hundred forty-six thousand, three hundred forty-seven".