1693494872 has 16 divisors (see below), whose sum is σ = 3187380240. Its totient is φ = 843526816.

The previous prime is 1693494851. The next prime is 1693494917. The reversal of 1693494872 is 2784943961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400343 + ... + 404550.

It is an arithmetic number, because the mean of its divisors is an integer number (199211265).

Almost surely, 2^1693494872 is an apocalyptic number.

It is an amenable number.

1693494872 is a deficient number, since it is larger than the sum of its proper divisors (1493885368).

1693494872 is a wasteful number, since it uses less digits than its factorization.

1693494872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805162 (or 805158 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 1693494872 is about 41152.0943816958. The cubic root of 1693494872 is about 1191.9589399997.

The spelling of 1693494872 in words is "one billion, six hundred ninety-three million, four hundred ninety-four thousand, eight hundred seventy-two".