47302987 has 2 divisors, whose sum is σ = 47302988. Its totient is φ = 47302986.

The previous prime is 47302963. The next prime is 47303021. The reversal of 47302987 is 78920374.

47302987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47302987 - 2⁷ = 47302859 is a prime.

It is not a weakly prime, because it can be changed into another prime (47303987) 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, 23651493 + 23651494.

It is an arithmetic number, because the mean of its divisors is an integer number (23651494).

Almost surely, 2^47302987 is an apocalyptic number.

47302987 is a deficient number, since it is larger than the sum of its proper divisors (1).

47302987 is an equidigital number, since it uses as much as digits as its factorization.

47302987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 47302987 is about 6877.7166996031. The cubic root of 47302987 is about 361.6564279866.

The spelling of 47302987 in words is "forty-seven million, three hundred two thousand, nine hundred eighty-seven".