98855121 has 4 divisors (see below), whose sum is σ = 131806832. Its totient is φ = 65903412.

The previous prime is 98855117. The next prime is 98855129. The reversal of 98855121 is 12155889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 98855121 - 2² = 98855117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98855121.

It is not an unprimeable number, because it can be changed into a prime (98855129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16475851 + ... + 16475856.

It is an arithmetic number, because the mean of its divisors is an integer number (32951708).

Almost surely, 2^98855121 is an apocalyptic number.

It is an amenable number.

98855121 is a deficient number, since it is larger than the sum of its proper divisors (32951711).

98855121 is a wasteful number, since it uses less digits than its factorization.

98855121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32951710.

The product of its digits is 28800, while the sum is 39.

The square root of 98855121 is about 9942.5912618391. The cubic root of 98855121 is about 462.3807275590.

The spelling of 98855121 in words is "ninety-eight million, eight hundred fifty-five thousand, one hundred twenty-one".