98980081 has 4 divisors (see below), whose sum is σ = 99187200. Its totient is φ = 98772964.

The previous prime is 98980067. The next prime is 98980087. The reversal of 98980081 is 18008989.

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 a cyclic number.

It is not a de Polignac number, because 98980081 - 2¹³ = 98971889 is a prime.

It is a super-2 number, since 2×98980081² = 19594112869533122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98980087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102841 + ... + 103798.

It is an arithmetic number, because the mean of its divisors is an integer number (24796800).

Almost surely, 2^98980081 is an apocalyptic number.

It is an amenable number.

98980081 is a deficient number, since it is larger than the sum of its proper divisors (207119).

98980081 is a wasteful number, since it uses less digits than its factorization.

98980081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207118.

The product of its (nonzero) digits is 41472, while the sum is 43.

The square root of 98980081 is about 9948.8733532999. The cubic root of 98980081 is about 462.5754730497.

The spelling of 98980081 in words is "ninety-eight million, nine hundred eighty thousand, eighty-one".