75685389 has 16 divisors (see below), whose sum is σ = 112425600. Its totient is φ = 44968896.

The previous prime is 75685339. The next prime is 75685391. The reversal of 75685389 is 98358657.

It is not a de Polignac number, because 75685389 - 2⁸ = 75685133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75685319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32329 + ... + 34590.

It is an arithmetic number, because the mean of its divisors is an integer number (7026600).

Almost surely, 2^75685389 is an apocalyptic number.

It is an amenable number.

75685389 is a deficient number, since it is larger than the sum of its proper divisors (36740211).

75685389 is a wasteful number, since it uses less digits than its factorization.

75685389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66964.

The product of its digits is 1814400, while the sum is 51.

The square root of 75685389 is about 8699.7349959640. The cubic root of 75685389 is about 422.9970602661.

The spelling of 75685389 in words is "seventy-five million, six hundred eighty-five thousand, three hundred eighty-nine".