9644401 has 4 divisors (see below), whose sum is σ = 10386292. Its totient is φ = 8902512.

The previous prime is 9644387. The next prime is 9644461. The reversal of 9644401 is 1044469.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1044469 = 229 ⋅4561.

It can be written as a sum of positive squares in 2 ways, for example, as 4626801 + 5017600 = 2151^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 9644401 - 2⁷ = 9644273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9644401.

It is not an unprimeable number, because it can be changed into a prime (9644461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370926 + ... + 370951.

It is an arithmetic number, because the mean of its divisors is an integer number (2596573).

Almost surely, 2^9644401 is an apocalyptic number.

It is an amenable number.

9644401 is a deficient number, since it is larger than the sum of its proper divisors (741891).

9644401 is a wasteful number, since it uses less digits than its factorization.

9644401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741890.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 9644401 is about 3105.5435917082. The cubic root of 9644401 is about 212.8588704144.

The spelling of 9644401 in words is "nine million, six hundred forty-four thousand, four hundred one".