75423385 has 4 divisors (see below), whose sum is σ = 90508068. Its totient is φ = 60338704.

The previous prime is 75423377. The next prime is 75423401. The reversal of 75423385 is 58332457.

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 52229529 + 23193856 = 7227^2 + 4816^2 .

It is a cyclic number.

It is not a de Polignac number, because 75423385 - 2³ = 75423377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 7542334 + ... + 7542343.

It is an arithmetic number, because the mean of its divisors is an integer number (22627017).

Almost surely, 2^75423385 is an apocalyptic number.

It is an amenable number.

75423385 is a deficient number, since it is larger than the sum of its proper divisors (15084683).

75423385 is a wasteful number, since it uses less digits than its factorization.

75423385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15084682.

The product of its digits is 100800, while the sum is 37.

The square root of 75423385 is about 8684.6637816325. The cubic root of 75423385 is about 422.5083923966.

The spelling of 75423385 in words is "seventy-five million, four hundred twenty-three thousand, three hundred eighty-five".