1003430997 has 10 divisors (see below), whose sum is σ = 1498952598. Its totient is φ = 668953944.

The previous prime is 1003430969. The next prime is 1003430999. The reversal of 1003430997 is 7990343001.

It can be written as a sum of positive squares in only one way, i.e., 871961841 + 131469156 = 29529^2 + 11466^2 .

It is not a de Polignac number, because 1003430997 - 2¹² = 1003426901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003430999) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 6193938 + ... + 6194099.

Almost surely, 2^1003430997 is an apocalyptic number.

It is an amenable number.

1003430997 is a deficient number, since it is larger than the sum of its proper divisors (495521601).

1003430997 is an equidigital number, since it uses as much as digits as its factorization.

1003430997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12388049 (or 12388040 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 1003430997 is about 31676.9789752748. The cubic root of 1003430997 is about 1001.1423601830.

Adding to 1003430997 its reverse (7990343001), we get a palindrome (8993773998).

The spelling of 1003430997 in words is "one billion, three million, four hundred thirty thousand, nine hundred ninety-seven".