98771089 has 4 divisors (see below), whose sum is σ = 98902324. Its totient is φ = 98639856.

The previous prime is 98771083. The next prime is 98771107. The reversal of 98771089 is 98017789.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31809600 + 66961489 = 5640^2 + 8183^2 .

It is a cyclic number.

It is not a de Polignac number, because 98771089 - 2³ = 98771081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98771081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64482 + ... + 65995.

It is an arithmetic number, because the mean of its divisors is an integer number (24725581).

Almost surely, 2^98771089 is an apocalyptic number.

It is an amenable number.

98771089 is a deficient number, since it is larger than the sum of its proper divisors (131235).

98771089 is a wasteful number, since it uses less digits than its factorization.

98771089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131234.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 98771089 is about 9938.3645032772. The cubic root of 98771089 is about 462.2496745202.

The spelling of 98771089 in words is "ninety-eight million, seven hundred seventy-one thousand, eighty-nine".