1003959673 has 2 divisors, whose sum is σ = 1003959674. Its totient is φ = 1003959672.

The previous prime is 1003959647. The next prime is 1003959679. The reversal of 1003959673 is 3769593001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718079209 + 285880464 = 26797^2 + 16908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003959673 - 2⁵ = 1003959641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1003959679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501979836 + 501979837.

It is an arithmetic number, because the mean of its divisors is an integer number (501979837).

Almost surely, 2^1003959673 is an apocalyptic number.

It is an amenable number.

1003959673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003959673 is an equidigital number, since it uses as much as digits as its factorization.

1003959673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 1003959673 is about 31685.3226747022. The cubic root of 1003959673 is about 1001.3181527100.

The spelling of 1003959673 in words is "one billion, three million, nine hundred fifty-nine thousand, six hundred seventy-three".