47089787 has 2 divisors, whose sum is σ = 47089788. Its totient is φ = 47089786.

The previous prime is 47089769. The next prime is 47089793. The reversal of 47089787 is 78798074.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47089787 - 2⁸ = 47089531 is a prime.

It is not a weakly prime, because it can be changed into another prime (47089747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23544893 + 23544894.

It is an arithmetic number, because the mean of its divisors is an integer number (23544894).

Almost surely, 2^47089787 is an apocalyptic number.

47089787 is a deficient number, since it is larger than the sum of its proper divisors (1).

47089787 is an equidigital number, since it uses as much as digits as its factorization.

47089787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 47089787 is about 6862.1998659322. The cubic root of 47089787 is about 361.1122672696.

The spelling of 47089787 in words is "forty-seven million, eighty-nine thousand, seven hundred eighty-seven".