74842843 has 8 divisors (see below), whose sum is σ = 79732800. Its totient is φ = 70048008.

The previous prime is 74842841. The next prime is 74842853. The reversal of 74842843 is 34824847.

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 74842843 - 2¹ = 74842841 is a prime.

It is a super-2 number, since 2×74842843² = 11202902296645298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74842796 and 74842805.

It is not an unprimeable number, because it can be changed into a prime (74842841) 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, 22153 + ... + 25306.

It is an arithmetic number, because the mean of its divisors is an integer number (9966600).

Almost surely, 2^74842843 is an apocalyptic number.

74842843 is a deficient number, since it is larger than the sum of its proper divisors (4889957).

74842843 is a wasteful number, since it uses less digits than its factorization.

74842843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47561.

The product of its digits is 172032, while the sum is 40.

The square root of 74842843 is about 8651.1758160380. The cubic root of 74842843 is about 421.4215681193.

The spelling of 74842843 in words is "seventy-four million, eight hundred forty-two thousand, eight hundred forty-three".