47480805 has 24 divisors (see below), whose sum is σ = 84527352. Its totient is φ = 24637824.

The previous prime is 47480789. The next prime is 47480827. The reversal of 47480805 is 50808474.

It can be written as a sum of positive squares in 4 ways, for example, as 22410756 + 25070049 = 4734^2 + 5007^2 .

It is not a de Polignac number, because 47480805 - 2⁴ = 47480789 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47480805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12594 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (3521973).

Almost surely, 2^47480805 is an apocalyptic number.

47480805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47480805 is a deficient number, since it is larger than the sum of its proper divisors (37046547).

47480805 is a wasteful number, since it uses less digits than its factorization.

47480805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28565 (or 28562 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 47480805 is about 6890.6316836702. The cubic root of 47480805 is about 362.1090323054.

The spelling of 47480805 in words is "forty-seven million, four hundred eighty thousand, eight hundred five".