98669881 has 4 divisors (see below), whose sum is σ = 98706064. Its totient is φ = 98633700.

The previous prime is 98669867. The next prime is 98669897. The reversal of 98669881 is 18896689.

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 98669881 - 2⁵ = 98669849 is a prime.

It is a super-2 number, since 2×98669881² = 19471490833108322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98669381) 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, 13635 + ... + 19576.

It is an arithmetic number, because the mean of its divisors is an integer number (24676516).

Almost surely, 2^98669881 is an apocalyptic number.

It is an amenable number.

98669881 is a deficient number, since it is larger than the sum of its proper divisors (36183).

98669881 is a wasteful number, since it uses less digits than its factorization.

98669881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36182.

The product of its digits is 1492992, while the sum is 55.

The square root of 98669881 is about 9933.2714147958. The cubic root of 98669881 is about 462.0917357487.

The spelling of 98669881 in words is "ninety-eight million, six hundred sixty-nine thousand, eight hundred eighty-one".