75897691 has 2 divisors, whose sum is σ = 75897692. Its totient is φ = 75897690.

The previous prime is 75897649. The next prime is 75897733. The reversal of 75897691 is 19679857.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (75897649) and next prime (75897733).

It is an emirp because it is prime and its reverse (19679857) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75897691 is a prime.

It is not a weakly prime, because it can be changed into another prime (75897491) 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, 37948845 + 37948846.

It is an arithmetic number, because the mean of its divisors is an integer number (37948846).

Almost surely, 2^75897691 is an apocalyptic number.

75897691 is a deficient number, since it is larger than the sum of its proper divisors (1).

75897691 is an equidigital number, since it uses as much as digits as its factorization.

75897691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 52.

The square root of 75897691 is about 8711.9280873983. The cubic root of 75897691 is about 423.3922016357.

The spelling of 75897691 in words is "seventy-five million, eight hundred ninety-seven thousand, six hundred ninety-one".