47487847 has 8 divisors (see below), whose sum is σ = 54057600. Its totient is φ = 41293560.

The previous prime is 47487833. The next prime is 47487863. The reversal of 47487847 is 74878474.

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

It is not a de Polignac number, because 47487847 - 2¹¹ = 47485799 is a prime.

It is a super-2 number, since 2×47487847² = 4510191225390818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47487847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47487827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93597 + ... + 94102.

It is an arithmetic number, because the mean of its divisors is an integer number (6757200).

Almost surely, 2^47487847 is an apocalyptic number.

47487847 is a deficient number, since it is larger than the sum of its proper divisors (6569753).

47487847 is a wasteful number, since it uses less digits than its factorization.

47487847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187733.

The product of its digits is 1404928, while the sum is 49.

The square root of 47487847 is about 6891.1426483567. The cubic root of 47487847 is about 362.1269331936.

The spelling of 47487847 in words is "forty-seven million, four hundred eighty-seven thousand, eight hundred forty-seven".