98775289 has 4 divisors (see below), whose sum is σ = 98938624. Its totient is φ = 98611956.

The previous prime is 98775283. The next prime is 98775293. The reversal of 98775289 is 98257789.

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 a de Polignac number, because none of the positive numbers 2^k-98775289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98775283) 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, 80757 + ... + 81970.

It is an arithmetic number, because the mean of its divisors is an integer number (24734656).

Almost surely, 2^98775289 is an apocalyptic number.

It is an amenable number.

98775289 is a deficient number, since it is larger than the sum of its proper divisors (163335).

98775289 is a wasteful number, since it uses less digits than its factorization.

98775289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163334.

The product of its digits is 2540160, while the sum is 55.

The square root of 98775289 is about 9938.5758034036. The cubic root of 98775289 is about 462.2562264412.

The spelling of 98775289 in words is "ninety-eight million, seven hundred seventy-five thousand, two hundred eighty-nine".