1993347536 has 20 divisors (see below), whose sum is σ = 3863315232. Its totient is φ = 996362976.

The previous prime is 1993347533. The next prime is 1993347539. The reversal of 1993347536 is 6357433991.

It is an interprime number because it is at equal distance from previous prime (1993347533) and next prime (1993347539).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993347533) 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, 38771 + ... + 74093.

Almost surely, 2^1993347536 is an apocalyptic number.

1993347536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1993347536 is a deficient number, since it is larger than the sum of its proper divisors (1869967696).

1993347536 is a wasteful number, since it uses less digits than its factorization.

1993347536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38858 (or 38852 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 50.

The square root of 1993347536 is about 44646.9207896804. The cubic root of 1993347536 is about 1258.5225682842.

The spelling of 1993347536 in words is "one billion, nine hundred ninety-three million, three hundred forty-seven thousand, five hundred thirty-six".