10003645 has 8 divisors (see below), whose sum is σ = 12027960. Its totient is φ = 7987200.

The previous prime is 10003639. The next prime is 10003657. The reversal of 10003645 is 54630001.

10003645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1920996 + 8082649 = 1386^2 + 2843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10003645 - 2⁵ = 10003613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341 + ... + 4669.

It is an arithmetic number, because the mean of its divisors is an integer number (1503495).

Almost surely, 2^10003645 is an apocalyptic number.

It is an amenable number.

10003645 is a deficient number, since it is larger than the sum of its proper divisors (2024315).

10003645 is an equidigital number, since it uses as much as digits as its factorization.

10003645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 10003645 is about 3162.8539327639. The cubic root of 10003645 is about 215.4696422049.

Adding to 10003645 its reverse (54630001), we get a palindrome (64633646).

It can be divided in two parts, 10003 and 645, that added together give a cube (10648 = 22³).

The spelling of 10003645 in words is "ten million, three thousand, six hundred forty-five".