444007747 has 4 divisors (see below), whose sum is σ = 445865760. Its totient is φ = 442149736.

The previous prime is 444007721. The next prime is 444007763. The reversal of 444007747 is 747700444.

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 444007747 - 2²³ = 435619139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444007247) 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, 928648 + ... + 929125.

It is an arithmetic number, because the mean of its divisors is an integer number (111466440).

Almost surely, 2^444007747 is an apocalyptic number.

444007747 is a deficient number, since it is larger than the sum of its proper divisors (1858013).

444007747 is a wasteful number, since it uses less digits than its factorization.

444007747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858012.

The product of its (nonzero) digits is 87808, while the sum is 37.

The square root of 444007747 is about 21071.4913330784. The cubic root of 444007747 is about 762.8927995686.

The spelling of 444007747 in words is "four hundred forty-four million, seven thousand, seven hundred forty-seven".