74399347 has 8 divisors (see below), whose sum is σ = 81922752. Its totient is φ = 67002600.

The previous prime is 74399329. The next prime is 74399371.

It is a happy number.

74399347 is nontrivially palindromic in base 10.

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 74399347 - 2⁷ = 74399219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74399297 and 74399306.

It is not an unprimeable number, because it can be changed into a prime (74399387) 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 in 7 ways as a sum of consecutive naturals, for example, 30429 + ... + 32782.

It is an arithmetic number, because the mean of its divisors is an integer number (10240344).

Almost surely, 2^74399347 is an apocalyptic number.

74399347 is a deficient number, since it is larger than the sum of its proper divisors (7523405).

74399347 is a wasteful number, since it uses less digits than its factorization.

74399347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63329.

The product of its digits is 571536, while the sum is 46.

The square root of 74399347 is about 8625.5056083687. The cubic root of 74399347 is about 420.5875130028.

The spelling of 74399347 in words is "seventy-four million, three hundred ninety-nine thousand, three hundred forty-seven".