9897800006 has 4 divisors (see below), whose sum is σ = 14846700012. Its totient is φ = 4948900002.

The previous prime is 9897799999. The next prime is 9897800047. The reversal of 9897800006 is 6000087989.

9897800006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2474450000 + ... + 2474450003.

It is an arithmetic number, because the mean of its divisors is an integer number (3711675003).

Almost surely, 2^9897800006 is an apocalyptic number.

9897800006 is a deficient number, since it is larger than the sum of its proper divisors (4948900006).

9897800006 is a wasteful number, since it uses less digits than its factorization.

9897800006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4948900005.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 9897800006 is about 99487.6877105906. The cubic root of 9897800006 is about 2147.0701036570.

The spelling of 9897800006 in words is "nine billion, eight hundred ninety-seven million, eight hundred thousand, six".