75104643 has 4 divisors (see below), whose sum is σ = 100139528. Its totient is φ = 50069760.

The previous prime is 75104629. The next prime is 75104651. The reversal of 75104643 is 34640157.

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

It is not a de Polignac number, because 75104643 - 2⁵ = 75104611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75104643.

It is not an unprimeable number, because it can be changed into a prime (75104143) 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, 12517438 + ... + 12517443.

It is an arithmetic number, because the mean of its divisors is an integer number (25034882).

Almost surely, 2^75104643 is an apocalyptic number.

75104643 is a deficient number, since it is larger than the sum of its proper divisors (25034885).

75104643 is a wasteful number, since it uses less digits than its factorization.

75104643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25034884.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 75104643 is about 8666.2934983763. The cubic root of 75104643 is about 421.9123733365.

The spelling of 75104643 in words is "seventy-five million, one hundred four thousand, six hundred forty-three".