9800155 has 8 divisors (see below), whose sum is σ = 11777472. Its totient is φ = 7828608.

The previous prime is 9800149. The next prime is 9800171. The reversal of 9800155 is 5510089.

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

It is a cyclic number.

It is not a de Polignac number, because 9800155 - 2⁷ = 9800027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4627 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (1472184).

Almost surely, 2^9800155 is an apocalyptic number.

9800155 is a deficient number, since it is larger than the sum of its proper divisors (1977317).

9800155 is a wasteful number, since it uses less digits than its factorization.

9800155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 9800155 is about 3130.5199248687. The cubic root of 9800155 is about 213.9986243252.

The spelling of 9800155 in words is "nine million, eight hundred thousand, one hundred fifty-five".