75430678 has 4 divisors (see below), whose sum is σ = 113146020. Its totient is φ = 37715338.

The previous prime is 75430673. The next prime is 75430687. The reversal of 75430678 is 87603457.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 75430678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75430673) 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 as a sum of consecutive naturals, namely, 18857668 + ... + 18857671.

It is an arithmetic number, because the mean of its divisors is an integer number (28286505).

Almost surely, 2^75430678 is an apocalyptic number.

75430678 is a deficient number, since it is larger than the sum of its proper divisors (37715342).

75430678 is a wasteful number, since it uses less digits than its factorization.

75430678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37715341.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 75430678 is about 8685.0836495684. The cubic root of 75430678 is about 422.5220099874.

The spelling of 75430678 in words is "seventy-five million, four hundred thirty thousand, six hundred seventy-eight".