74422447 has 8 divisors (see below), whose sum is σ = 85964112. Its totient is φ = 63676800.

The previous prime is 74422409. The next prime is 74422451.

74422447 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 74422447 - 2¹¹ = 74420399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74422477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198804 + ... + 199177.

It is an arithmetic number, because the mean of its divisors is an integer number (10745514).

Almost surely, 2^74422447 is an apocalyptic number.

74422447 is a deficient number, since it is larger than the sum of its proper divisors (11541665).

74422447 is a wasteful number, since it uses less digits than its factorization.

74422447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398009.

The product of its digits is 50176, while the sum is 34.

The square root of 74422447 is about 8626.8445563833. The cubic root of 74422447 is about 420.6310374269.

It can be divided in two parts, 7442 and 2447, that added together give a palindrome (9889).

The spelling of 74422447 in words is "seventy-four million, four hundred twenty-two thousand, four hundred forty-seven".