75083389 has 4 divisors (see below), whose sum is σ = 75186556. Its totient is φ = 74980224.

The previous prime is 75083381. The next prime is 75083399. The reversal of 75083389 is 98338057.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66292164 + 8791225 = 8142^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 75083389 - 2³ = 75083381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75083381) 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 3 ways as a sum of consecutive naturals, for example, 50484 + ... + 51949.

It is an arithmetic number, because the mean of its divisors is an integer number (18796639).

Almost surely, 2^75083389 is an apocalyptic number.

It is an amenable number.

75083389 is a deficient number, since it is larger than the sum of its proper divisors (103167).

75083389 is a wasteful number, since it uses less digits than its factorization.

75083389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103166.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 75083389 is about 8665.0671665025. The cubic root of 75083389 is about 421.8725703308.

The spelling of 75083389 in words is "seventy-five million, eighty-three thousand, three hundred eighty-nine".