1003665634 has 16 divisors (see below), whose sum is σ = 1518229440. Its totient is φ = 497605680.

The previous prime is 1003665617. The next prime is 1003665643. The reversal of 1003665634 is 4365663001.

It is a self number, because there is not a number n which added to its sum of digits gives 1003665634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126097 + ... + 133819.

It is an arithmetic number, because the mean of its divisors is an integer number (94889340).

Almost surely, 2^1003665634 is an apocalyptic number.

1003665634 is a deficient number, since it is larger than the sum of its proper divisors (514563806).

1003665634 is a wasteful number, since it uses less digits than its factorization.

1003665634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8265.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 1003665634 is about 31680.6823474495. The cubic root of 1003665634 is about 1001.2203880472.

The spelling of 1003665634 in words is "one billion, three million, six hundred sixty-five thousand, six hundred thirty-four".