7444444447 has 4 divisors (see below), whose sum is σ = 8121212136. Its totient is φ = 6767676760.

The previous prime is 7444444433. The next prime is 7444444489.

It is a happy number.

7444444447 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 7444444447 - 2²⁷ = 7310226719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7444444397 and 7444444406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7444445447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338383828 + ... + 338383849.

It is an arithmetic number, because the mean of its divisors is an integer number (2030303034).

Almost surely, 2^7444444447 is an apocalyptic number.

7444444447 is a deficient number, since it is larger than the sum of its proper divisors (676767689).

7444444447 is a wasteful number, since it uses less digits than its factorization.

7444444447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676767688.

The product of its digits is 3211264, while the sum is 46.

The square root of 7444444447 is about 86281.1940517747. The cubic root of 7444444447 is about 1952.5886677736.

The spelling of 7444444447 in words is "seven billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-seven".