47974643 has 4 divisors (see below), whose sum is σ = 48023760. Its totient is φ = 47925528.

The previous prime is 47974637. The next prime is 47974669. The reversal of 47974643 is 34647974.

47974643 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 47974643 - 2⁶ = 47974579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47974594 and 47974603.

It is not an unprimeable number, because it can be changed into a prime (47979643) 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, 23063 + ... + 25056.

It is an arithmetic number, because the mean of its divisors is an integer number (12005940).

Almost surely, 2^47974643 is an apocalyptic number.

47974643 is a deficient number, since it is larger than the sum of its proper divisors (49117).

47974643 is an equidigital number, since it uses as much as digits as its factorization.

47974643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49116.

The product of its digits is 508032, while the sum is 44.

The square root of 47974643 is about 6926.3730046829. The cubic root of 47974643 is about 363.3601118402.

The spelling of 47974643 in words is "forty-seven million, nine hundred seventy-four thousand, six hundred forty-three".