1993671356 has 12 divisors (see below), whose sum is σ = 3489444840. Its totient is φ = 996687120.

The previous prime is 1993671353. The next prime is 1993671377. The reversal of 1993671356 is 6531763991.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3575 + ... + 63246.

It is an arithmetic number, because the mean of its divisors is an integer number (290787070).

Almost surely, 2^1993671356 is an apocalyptic number.

It is an amenable number.

1993671356 is a deficient number, since it is larger than the sum of its proper divisors (1495773484).

1993671356 is a wasteful number, since it uses less digits than its factorization.

1993671356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74284 (or 74282 counting only the distinct ones).

The product of its digits is 918540, while the sum is 50.

The square root of 1993671356 is about 44650.5470963123. The cubic root of 1993671356 is about 1258.5907137371.

The spelling of 1993671356 in words is "one billion, nine hundred ninety-three million, six hundred seventy-one thousand, three hundred fifty-six".