1694048399 has 2 divisors, whose sum is σ = 1694048400. Its totient is φ = 1694048398.

The previous prime is 1694048387. The next prime is 1694048407. The reversal of 1694048399 is 9938404961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1694048399 - 2⁴ = 1694048383 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1694048399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1694048329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847024199 + 847024200.

It is an arithmetic number, because the mean of its divisors is an integer number (847024200).

Almost surely, 2^1694048399 is an apocalyptic number.

1694048399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1694048399 is an equidigital number, since it uses as much as digits as its factorization.

1694048399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 1694048399 is about 41158.8192128977. The cubic root of 1694048399 is about 1192.0887917038.

The spelling of 1694048399 in words is "one billion, six hundred ninety-four million, forty-eight thousand, three hundred ninety-nine".