1604743003 has 2 divisors, whose sum is σ = 1604743004. Its totient is φ = 1604743002.

The previous prime is 1604742977. The next prime is 1604743009. The reversal of 1604743003 is 3003474061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1604743003 - 2¹³ = 1604734811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1604743009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802371501 + 802371502.

It is an arithmetic number, because the mean of its divisors is an integer number (802371502).

Almost surely, 2^1604743003 is an apocalyptic number.

1604743003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604743003 is an equidigital number, since it uses as much as digits as its factorization.

1604743003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1604743003 is about 40059.2436648522. The cubic root of 1604743003 is about 1170.7616739089.

The spelling of 1604743003 in words is "one billion, six hundred four million, seven hundred forty-three thousand, three".