47917347 has 4 divisors (see below), whose sum is σ = 63889800. Its totient is φ = 31944896.

The previous prime is 47917327. The next prime is 47917369. The reversal of 47917347 is 74371974.

47917347 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 47917347 - 2⁸ = 47917091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47917299 and 47917308.

It is not an unprimeable number, because it can be changed into a prime (47917327) 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, 7986222 + ... + 7986227.

It is an arithmetic number, because the mean of its divisors is an integer number (15972450).

Almost surely, 2^47917347 is an apocalyptic number.

47917347 is a deficient number, since it is larger than the sum of its proper divisors (15972453).

47917347 is a wasteful number, since it uses less digits than its factorization.

47917347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15972452.

The product of its digits is 148176, while the sum is 42.

The square root of 47917347 is about 6922.2356937625. The cubic root of 47917347 is about 363.2154008482.

The spelling of 47917347 in words is "forty-seven million, nine hundred seventeen thousand, three hundred forty-seven".