47205813 has 8 divisors (see below), whose sum is σ = 64280448. Its totient is φ = 30800864.

The previous prime is 47205799. The next prime is 47205833. The reversal of 47205813 is 31850274.

47205813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47205813 - 2⁶ = 47205749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47205833) 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 7 ways as a sum of consecutive naturals, for example, 167256 + ... + 167537.

It is an arithmetic number, because the mean of its divisors is an integer number (8035056).

Almost surely, 2^47205813 is an apocalyptic number.

It is an amenable number.

47205813 is a deficient number, since it is larger than the sum of its proper divisors (17074635).

47205813 is a wasteful number, since it uses less digits than its factorization.

47205813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334843.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 47205813 is about 6870.6486593334. The cubic root of 47205813 is about 361.4086092864.

The spelling of 47205813 in words is "forty-seven million, two hundred five thousand, eight hundred thirteen".