9893693621 has 8 divisors (see below), whose sum is σ = 11696977920. Its totient is φ = 8187884208.

The previous prime is 9893693599. The next prime is 9893693627. The reversal of 9893693621 is 1263963989.

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

It is a de Polignac number, because none of the positive numbers 2^k-9893693621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9893693627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24368501 + ... + 24368906.

It is an arithmetic number, because the mean of its divisors is an integer number (1462122240).

Almost surely, 2^9893693621 is an apocalyptic number.

It is an amenable number.

9893693621 is a deficient number, since it is larger than the sum of its proper divisors (1803284299).

9893693621 is a wasteful number, since it uses less digits than its factorization.

9893693621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48737443.

The product of its digits is 3779136, while the sum is 56.

The square root of 9893693621 is about 99467.0479153775. The cubic root of 9893693621 is about 2146.7731381351.

The spelling of 9893693621 in words is "nine billion, eight hundred ninety-three million, six hundred ninety-three thousand, six hundred twenty-one".