47712681 has 12 divisors (see below), whose sum is σ = 69009408. Its totient is φ = 31766424.

The previous prime is 47712653. The next prime is 47712683. The reversal of 47712681 is 18621774.

It is not a de Polignac number, because 47712681 - 2¹⁷ = 47581609 is a prime.

It is a super-2 number, since 2×47712681² = 4552999856415522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47712683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4696 + ... + 10838.

It is an arithmetic number, because the mean of its divisors is an integer number (5750784).

Almost surely, 2^47712681 is an apocalyptic number.

It is an amenable number.

47712681 is a deficient number, since it is larger than the sum of its proper divisors (21296727).

47712681 is a wasteful number, since it uses less digits than its factorization.

47712681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012 (or 7009 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 47712681 is about 6907.4366446606. The cubic root of 47712681 is about 362.6975373620.

The spelling of 47712681 in words is "forty-seven million, seven hundred twelve thousand, six hundred eighty-one".