47986957 has 2 divisors, whose sum is σ = 47986958. Its totient is φ = 47986956.

The previous prime is 47986927. The next prime is 47986963. The reversal of 47986957 is 75968974.

47986957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39112516 + 8874441 = 6254^2 + 2979^2 .

It is a cyclic number.

It is not a de Polignac number, because 47986957 - 2¹⁵ = 47954189 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47986898 and 47986907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47986927) 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, 23993478 + 23993479.

It is an arithmetic number, because the mean of its divisors is an integer number (23993479).

Almost surely, 2^47986957 is an apocalyptic number.

It is an amenable number.

47986957 is a deficient number, since it is larger than the sum of its proper divisors (1).

47986957 is an equidigital number, since it uses as much as digits as its factorization.

47986957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 55.

The square root of 47986957 is about 6927.2618688772. The cubic root of 47986957 is about 363.3911979401.

The spelling of 47986957 in words is "forty-seven million, nine hundred eighty-six thousand, nine hundred fifty-seven".