9944457 has 4 divisors (see below), whose sum is σ = 13259280. Its totient is φ = 6629636.

The previous prime is 9944449. The next prime is 9944461. The reversal of 9944457 is 7544499.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9944457 - 2³ = 9944449 is a prime.

9944457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9944497) 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, 1657407 + ... + 1657412.

It is an arithmetic number, because the mean of its divisors is an integer number (3314820).

Almost surely, 2^9944457 is an apocalyptic number.

It is an amenable number.

9944457 is a deficient number, since it is larger than the sum of its proper divisors (3314823).

9944457 is a wasteful number, since it uses less digits than its factorization.

9944457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314822.

The product of its digits is 181440, while the sum is 42.

The square root of 9944457 is about 3153.4833121486. The cubic root of 9944457 is about 215.0438489977.

Adding to 9944457 its sum of digits (42), we get a palindrome (9944499).

It can be divided in two parts, 9944 and 457, that added together give a palindrome (10401).

The spelling of 9944457 in words is "nine million, nine hundred forty-four thousand, four hundred fifty-seven".