47656427 has 32 divisors (see below), whose sum is σ = 63275520. Its totient is φ = 34836480.

The previous prime is 47656421. The next prime is 47656429. The reversal of 47656427 is 72465674.

It is not a de Polignac number, because 47656427 - 2⁸ = 47656171 is a prime.

It is a super-2 number, since 2×47656427² = 4542270068812658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47656421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 74027 + ... + 74667.

It is an arithmetic number, because the mean of its divisors is an integer number (1977360).

Almost surely, 2^47656427 is an apocalyptic number.

47656427 is a deficient number, since it is larger than the sum of its proper divisors (15619093).

47656427 is a wasteful number, since it uses less digits than its factorization.

47656427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its digits is 282240, while the sum is 41.

The square root of 47656427 is about 6903.3634555918. The cubic root of 47656427 is about 362.5549392752.

The spelling of 47656427 in words is "forty-seven million, six hundred fifty-six thousand, four hundred twenty-seven".