1993671357 has 8 divisors (see below), whose sum is σ = 2701806240. Its totient is φ = 1307325360.

The previous prime is 1993671353. The next prime is 1993671377. The reversal of 1993671357 is 7531763991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1993671357 - 2² = 1993671353 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993671353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5447007 + ... + 5447372.

It is an arithmetic number, because the mean of its divisors is an integer number (337725780).

Almost surely, 2^1993671357 is an apocalyptic number.

It is an amenable number.

1993671357 is a deficient number, since it is larger than the sum of its proper divisors (708134883).

1993671357 is a wasteful number, since it uses less digits than its factorization.

1993671357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10894443.

The product of its digits is 1071630, while the sum is 51.

The square root of 1993671357 is about 44650.5471075103. The cubic root of 1993671357 is about 1258.5907139476.

The spelling of 1993671357 in words is "one billion, nine hundred ninety-three million, six hundred seventy-one thousand, three hundred fifty-seven".