75905087 has 2 divisors, whose sum is σ = 75905088. Its totient is φ = 75905086.

The previous prime is 75905041. The next prime is 75905099. The reversal of 75905087 is 78050957.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75905087 - 2¹⁶ = 75839551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75905287) 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, 37952543 + 37952544.

It is an arithmetic number, because the mean of its divisors is an integer number (37952544).

Almost surely, 2^75905087 is an apocalyptic number.

75905087 is a deficient number, since it is larger than the sum of its proper divisors (1).

75905087 is an equidigital number, since it uses as much as digits as its factorization.

75905087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

The square root of 75905087 is about 8712.3525525543. The cubic root of 75905087 is about 423.4059539513.

The spelling of 75905087 in words is "seventy-five million, nine hundred five thousand, eighty-seven".