47730481 has 4 divisors (see below), whose sum is σ = 49020532. Its totient is φ = 46440432.

The previous prime is 47730467. The next prime is 47730517. The reversal of 47730481 is 18403774.

47730481 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 can be written as a sum of positive squares in 2 ways, for example, as 28729600 + 19000881 = 5360^2 + 4359^2 .

It is a cyclic number.

It is not a de Polignac number, because 47730481 - 2¹³ = 47722289 is a prime.

It is a super-2 number, since 2×47730481² = 4556397632982722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47730401) 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, 644970 + ... + 645043.

It is an arithmetic number, because the mean of its divisors is an integer number (12255133).

Almost surely, 2^47730481 is an apocalyptic number.

It is an amenable number.

47730481 is a deficient number, since it is larger than the sum of its proper divisors (1290051).

47730481 is a wasteful number, since it uses less digits than its factorization.

47730481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290050.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 47730481 is about 6908.7249909082. The cubic root of 47730481 is about 362.7426351806.

The spelling of 47730481 in words is "forty-seven million, seven hundred thirty thousand, four hundred eighty-one".