47687956 has 6 divisors (see below), whose sum is σ = 83453930. Its totient is φ = 23843976.

The previous prime is 47687953. The next prime is 47687957. The reversal of 47687956 is 65978674.

It is a happy number.

47687956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 24010000 + 23677956 = 4900^2 + 4866^2 .

It is a super-2 number, since 2×47687956² = 4548282294915872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47687953) 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 as a sum of consecutive naturals, namely, 5960991 + ... + 5960998.

Almost surely, 2^47687956 is an apocalyptic number.

It is an amenable number.

47687956 is a deficient number, since it is larger than the sum of its proper divisors (35765974).

47687956 is a wasteful number, since it uses less digits than its factorization.

47687956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11921993 (or 11921991 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 52.

The square root of 47687956 is about 6905.6466750044. The cubic root of 47687956 is about 362.6348758508.

The spelling of 47687956 in words is "forty-seven million, six hundred eighty-seven thousand, nine hundred fifty-six".