75985917 has 12 divisors (see below), whose sum is σ = 117855936. Its totient is φ = 43420440.

The previous prime is 75985909. The next prime is 75985927. The reversal of 75985917 is 71958957.

It is not a de Polignac number, because 75985917 - 2³ = 75985909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75985917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75985907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258309 + ... + 258602.

It is an arithmetic number, because the mean of its divisors is an integer number (9821328).

Almost surely, 2^75985917 is an apocalyptic number.

It is an amenable number.

75985917 is a deficient number, since it is larger than the sum of its proper divisors (41870019).

75985917 is a wasteful number, since it uses less digits than its factorization.

75985917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516928 (or 516921 counting only the distinct ones).

The product of its digits is 793800, while the sum is 51.

The square root of 75985917 is about 8716.9901342149. The cubic root of 75985917 is about 423.5561931674.

The spelling of 75985917 in words is "seventy-five million, nine hundred eighty-five thousand, nine hundred seventeen".