9908201993 has 16 divisors (see below), whose sum is σ = 10532592000. Its totient is φ = 9300508800.

The previous prime is 9908201981. The next prime is 9908202013. The reversal of 9908201993 is 3991028099.

It is a cyclic number.

It is not a de Polignac number, because 9908201993 - 2¹⁰ = 9908200969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9908201903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 809483 + ... + 821631.

It is an arithmetic number, because the mean of its divisors is an integer number (658287000).

Almost surely, 2^9908201993 is an apocalyptic number.

It is an amenable number.

9908201993 is a deficient number, since it is larger than the sum of its proper divisors (624390007).

9908201993 is a wasteful number, since it uses less digits than its factorization.

9908201993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12832.

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 9908201993 is about 99539.9517430062. The cubic root of 9908201993 is about 2147.8219871071.

The spelling of 9908201993 in words is "nine billion, nine hundred eight million, two hundred one thousand, nine hundred ninety-three".