75768393 has 4 divisors (see below), whose sum is σ = 101024528. Its totient is φ = 50512260.

The previous prime is 75768391. The next prime is 75768397. The reversal of 75768393 is 39386757.

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.

It is not a de Polignac number, because 75768393 - 2¹ = 75768391 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75768391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12628063 + ... + 12628068.

It is an arithmetic number, because the mean of its divisors is an integer number (25256132).

Almost surely, 2^75768393 is an apocalyptic number.

It is an amenable number.

75768393 is a deficient number, since it is larger than the sum of its proper divisors (25256135).

75768393 is a wasteful number, since it uses less digits than its factorization.

75768393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25256134.

The product of its digits is 952560, while the sum is 48.

The square root of 75768393 is about 8704.5041788720. The cubic root of 75768393 is about 423.1516370877.

The spelling of 75768393 in words is "seventy-five million, seven hundred sixty-eight thousand, three hundred ninety-three".