47727775 has 6 divisors (see below), whose sum is σ = 59182472. Its totient is φ = 38182200.

The previous prime is 47727773. The next prime is 47727793. The reversal of 47727775 is 57772774.

47727775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47727775 - 2¹ = 47727773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47727773) 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 5 ways as a sum of consecutive naturals, for example, 954531 + ... + 954580.

Almost surely, 2^47727775 is an apocalyptic number.

47727775 is a deficient number, since it is larger than the sum of its proper divisors (11454697).

47727775 is a wasteful number, since it uses less digits than its factorization.

47727775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909121 (or 1909116 counting only the distinct ones).

The product of its digits is 672280, while the sum is 46.

The square root of 47727775 is about 6908.5291488131. The cubic root of 47727775 is about 362.7357800215.

The spelling of 47727775 in words is "forty-seven million, seven hundred twenty-seven thousand, seven hundred seventy-five".