98121001 has 16 divisors (see below), whose sum is σ = 109368000. Its totient is φ = 87278400.

The previous prime is 98120927. The next prime is 98121011. The reversal of 98121001 is 10012189.

It is not a de Polignac number, because 98121001 - 2⁷ = 98120873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98121011) 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, 233970 + ... + 234388.

It is an arithmetic number, because the mean of its divisors is an integer number (6835500).

Almost surely, 2^98121001 is an apocalyptic number.

It is an amenable number.

98121001 is a deficient number, since it is larger than the sum of its proper divisors (11246999).

98121001 is a wasteful number, since it uses less digits than its factorization.

98121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 98121001 is about 9905.6045247123. The cubic root of 98121001 is about 461.2333019809.

The spelling of 98121001 in words is "ninety-eight million, one hundred twenty-one thousand, one".