47930847 has 4 divisors (see below), whose sum is σ = 63907800. Its totient is φ = 31953896.

The previous prime is 47930843. The next prime is 47930849. The reversal of 47930847 is 74803974.

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 47930847 - 2² = 47930843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47930799 and 47930808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47930843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7988472 + ... + 7988477.

It is an arithmetic number, because the mean of its divisors is an integer number (15976950).

Almost surely, 2^47930847 is an apocalyptic number.

47930847 is a deficient number, since it is larger than the sum of its proper divisors (15976953).

47930847 is a wasteful number, since it uses less digits than its factorization.

47930847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15976952.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 47930847 is about 6923.2107435784. The cubic root of 47930847 is about 363.2495078248.

The spelling of 47930847 in words is "forty-seven million, nine hundred thirty thousand, eight hundred forty-seven".