74875643 has 4 divisors (see below), whose sum is σ = 75617088. Its totient is φ = 74134200.

The previous prime is 74875631. The next prime is 74875663. The reversal of 74875643 is 34657847.

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

It is a cyclic number.

It is not a de Polignac number, because 74875643 - 2⁶ = 74875579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74875594 and 74875603.

It is not an unprimeable number, because it can be changed into a prime (74875663) 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, 370571 + ... + 370772.

It is an arithmetic number, because the mean of its divisors is an integer number (18904272).

Almost surely, 2^74875643 is an apocalyptic number.

74875643 is a deficient number, since it is larger than the sum of its proper divisors (741445).

74875643 is a wasteful number, since it uses less digits than its factorization.

74875643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741444.

The product of its digits is 564480, while the sum is 44.

The square root of 74875643 is about 8653.0713044560. The cubic root of 74875643 is about 421.4831220284.

The spelling of 74875643 in words is "seventy-four million, eight hundred seventy-five thousand, six hundred forty-three".