74322347 has 4 divisors (see below), whose sum is σ = 81078936. Its totient is φ = 67565760.

The previous prime is 74322329. The next prime is 74322371.

74322347 is nontrivially palindromic in base 10.

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 74322347 - 2²⁰ = 73273771 is a prime.

It is a super-2 number, since 2×74322347² = 11047622527176818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74322397) 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 3 ways as a sum of consecutive naturals, for example, 3378278 + ... + 3378299.

It is an arithmetic number, because the mean of its divisors is an integer number (20269734).

Almost surely, 2^74322347 is an apocalyptic number.

74322347 is a deficient number, since it is larger than the sum of its proper divisors (6756589).

74322347 is a wasteful number, since it uses less digits than its factorization.

74322347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756588.

The product of its digits is 28224, while the sum is 32.

The square root of 74322347 is about 8621.0409464287. The cubic root of 74322347 is about 420.4423664898.

It can be divided in two parts, 7432 and 2347, that added together give a palindrome (9779).

The spelling of 74322347 in words is "seventy-four million, three hundred twenty-two thousand, three hundred forty-seven".