75408223 has 4 divisors (see below), whose sum is σ = 82263528. Its totient is φ = 68552920.

The previous prime is 75408211. The next prime is 75408227. The reversal of 75408223 is 32280457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32280457 = 11 ⋅2934587.

It is a cyclic number.

It is not a de Polignac number, because 75408223 - 2²¹ = 73311071 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 (75408227) 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, 3427636 + ... + 3427657.

It is an arithmetic number, because the mean of its divisors is an integer number (20565882).

Almost surely, 2^75408223 is an apocalyptic number.

75408223 is a deficient number, since it is larger than the sum of its proper divisors (6855305).

75408223 is a wasteful number, since it uses less digits than its factorization.

75408223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855304.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 75408223 is about 8683.7908196824. The cubic root of 75408223 is about 422.4800788899.

The spelling of 75408223 in words is "seventy-five million, four hundred eight thousand, two hundred twenty-three".