49705987 has 2 divisors, whose sum is σ = 49705988. Its totient is φ = 49705986.

The previous prime is 49705969. The next prime is 49705991. The reversal of 49705987 is 78950794.

It is a happy number.

49705987 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 is a cyclic number.

It is not a de Polignac number, because 49705987 - 2¹¹ = 49703939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49705987.

It is not a weakly prime, because it can be changed into another prime (49705087) 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, 24852993 + 24852994.

It is an arithmetic number, because the mean of its divisors is an integer number (24852994).

Almost surely, 2^49705987 is an apocalyptic number.

49705987 is a deficient number, since it is larger than the sum of its proper divisors (1).

49705987 is an equidigital number, since it uses as much as digits as its factorization.

49705987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 49705987 is about 7050.2473006271. The cubic root of 49705987 is about 367.6796277373.

The spelling of 49705987 in words is "forty-nine million, seven hundred five thousand, nine hundred eighty-seven".