10644003 has 12 divisors (see below), whose sum is σ = 15561000. Its totient is φ = 7010016.

The previous prime is 10644001. The next prime is 10644017. The reversal of 10644003 is 30044601.

It is not a de Polignac number, because 10644003 - 2¹ = 10644001 is a prime.

It is a super-2 number, since 2×10644003² = 226589599728018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10644001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6378 + ... + 7871.

It is an arithmetic number, because the mean of its divisors is an integer number (1296750).

Almost surely, 2^10644003 is an apocalyptic number.

10644003 is a deficient number, since it is larger than the sum of its proper divisors (4916997).

10644003 is a wasteful number, since it uses less digits than its factorization.

10644003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14338 (or 14335 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 10644003 is about 3262.5148275525. The cubic root of 10644003 is about 219.9724690067.

Adding to 10644003 its reverse (30044601), we get a palindrome (40688604).

The spelling of 10644003 in words is "ten million, six hundred forty-four thousand, three".