47975287 has 2 divisors, whose sum is σ = 47975288. Its totient is φ = 47975286.

The previous prime is 47975261. The next prime is 47975293. The reversal of 47975287 is 78257974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47975287 - 2⁷ = 47975159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47975287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47975087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23987643 + 23987644.

It is an arithmetic number, because the mean of its divisors is an integer number (23987644).

Almost surely, 2^47975287 is an apocalyptic number.

47975287 is a deficient number, since it is larger than the sum of its proper divisors (1).

47975287 is an equidigital number, since it uses as much as digits as its factorization.

47975287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 49.

The square root of 47975287 is about 6926.4194935046. The cubic root of 47975287 is about 363.3617377190.

The spelling of 47975287 in words is "forty-seven million, nine hundred seventy-five thousand, two hundred eighty-seven".