74678843 has 8 divisors (see below), whose sum is σ = 75570000. Its totient is φ = 73791648.

The previous prime is 74678833. The next prime is 74678867. The reversal of 74678843 is 34887647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74678843 - 2¹⁰ = 74677819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74678833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53705 + ... + 55077.

It is an arithmetic number, because the mean of its divisors is an integer number (9446250).

Almost surely, 2^74678843 is an apocalyptic number.

74678843 is a deficient number, since it is larger than the sum of its proper divisors (891157).

74678843 is a wasteful number, since it uses less digits than its factorization.

74678843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981.

The product of its digits is 903168, while the sum is 47.

The square root of 74678843 is about 8641.6921375388. The cubic root of 74678843 is about 421.1135285103.

The spelling of 74678843 in words is "seventy-four million, six hundred seventy-eight thousand, eight hundred forty-three".