75227389 has 4 divisors (see below), whose sum is σ = 75957856. Its totient is φ = 74496924.

The previous prime is 75227381. The next prime is 75227393. The reversal of 75227389 is 98372257.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98372257 = 263 ⋅374039.

It is a cyclic number.

It is not a de Polignac number, because 75227389 - 2³ = 75227381 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 (75227381) 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, 365079 + ... + 365284.

It is an arithmetic number, because the mean of its divisors is an integer number (18989464).

Almost surely, 2^75227389 is an apocalyptic number.

It is an amenable number.

75227389 is a deficient number, since it is larger than the sum of its proper divisors (730467).

75227389 is a wasteful number, since it uses less digits than its factorization.

75227389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730466.

The product of its digits is 211680, while the sum is 43.

The square root of 75227389 is about 8673.3724121590. The cubic root of 75227389 is about 422.1420966786.

The spelling of 75227389 in words is "seventy-five million, two hundred twenty-seven thousand, three hundred eighty-nine".