1353683986 has 16 divisors (see below), whose sum is σ = 2042781048. Its totient is φ = 672768000.

The previous prime is 1353683959. The next prime is 1353683993. The reversal of 1353683986 is 6893863531.

It can be written as a sum of positive squares in 4 ways, for example, as 1291036761 + 62647225 = 35931^2 + 7915^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 287346 + ... + 292018.

Almost surely, 2^1353683986 is an apocalyptic number.

1353683986 is a deficient number, since it is larger than the sum of its proper divisors (689097062).

1353683986 is a wasteful number, since it uses less digits than its factorization.

1353683986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517.

The product of its digits is 2799360, while the sum is 52.

The square root of 1353683986 is about 36792.4446863755. Note that the first 3 decimals coincide. The cubic root of 1353683986 is about 1106.2138639456.

The spelling of 1353683986 in words is "one billion, three hundred fifty-three million, six hundred eighty-three thousand, nine hundred eighty-six".