47420473 has 4 divisors (see below), whose sum is σ = 47991888. Its totient is φ = 46849060.

The previous prime is 47420467. The next prime is 47420491. The reversal of 47420473 is 37402474.

47420473 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37402474 = 2 ⋅18701237.

It is a cyclic number.

It is not a de Polignac number, because 47420473 - 2⁵ = 47420441 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47420453) 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, 285583 + ... + 285748.

It is an arithmetic number, because the mean of its divisors is an integer number (11997972).

Almost surely, 2^47420473 is an apocalyptic number.

It is an amenable number.

47420473 is a deficient number, since it is larger than the sum of its proper divisors (571415).

47420473 is an equidigital number, since it uses as much as digits as its factorization.

47420473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571414.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 47420473 is about 6886.2524641491. The cubic root of 47420473 is about 361.9555947078.

The spelling of 47420473 in words is "forty-seven million, four hundred twenty thousand, four hundred seventy-three".