1694048389 has 4 divisors (see below), whose sum is σ = 1848052800. Its totient is φ = 1540043980.

The previous prime is 1694048387. The next prime is 1694048399. The reversal of 1694048389 is 9838404961.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1694048389 - 2¹ = 1694048387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1694048383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77002189 + ... + 77002210.

It is an arithmetic number, because the mean of its divisors is an integer number (462013200).

Almost surely, 2^1694048389 is an apocalyptic number.

It is an amenable number.

1694048389 is a deficient number, since it is larger than the sum of its proper divisors (154004411).

1694048389 is a wasteful number, since it uses less digits than its factorization.

1694048389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154004410.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 1694048389 is about 41158.8190914171. The cubic root of 1694048389 is about 1192.0887893581.

The spelling of 1694048389 in words is "one billion, six hundred ninety-four million, forty-eight thousand, three hundred eighty-nine".