47818087 has 2 divisors, whose sum is σ = 47818088. Its totient is φ = 47818086.

The previous prime is 47818073. The next prime is 47818103. The reversal of 47818087 is 78081874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47818087 - 2¹¹ = 47816039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47818387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23909043 + 23909044.

It is an arithmetic number, because the mean of its divisors is an integer number (23909044).

Almost surely, 2^47818087 is an apocalyptic number.

47818087 is a deficient number, since it is larger than the sum of its proper divisors (1).

47818087 is an equidigital number, since it uses as much as digits as its factorization.

47818087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 47818087 is about 6915.0623279910. The cubic root of 47818087 is about 362.9644292212.

The spelling of 47818087 in words is "forty-seven million, eight hundred eighteen thousand, eighty-seven".