9800802001 has 3 divisors (see below), whose sum is σ = 9800901001. Its totient is φ = 9800703002.

The previous prime is 9800801999. The next prime is 9800802007. The reversal of 9800802001 is 1002080089.

The square root of 9800802001 is 98999.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 9800802001 - 2¹ = 9800801999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9800802007) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 49500 + ... + 148498.

Almost surely, 2^9800802001 is an apocalyptic number.

9800802001 is the 98999-th square number.

9800802001 is the 49500-th centered octagonal number.

It is an amenable number.

9800802001 is a deficient number, since it is larger than the sum of its proper divisors (99000).

9800802001 is an frugal number, since it uses more digits than its factorization.

9800802001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197998 (or 98999 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The cubic root of 9800802001 is about 2140.0333357983.

It can be divided in two parts, 980080 and 2001, that added together give a square (982081 = 991²).

The spelling of 9800802001 in words is "nine billion, eight hundred million, eight hundred two thousand, one".