98857161 has 24 divisors (see below), whose sum is σ = 154594440. Its totient is φ = 60512256.

The previous prime is 98857141. The next prime is 98857169. The reversal of 98857161 is 16175889.

It can be written as a sum of positive squares in 4 ways, for example, as 49787136 + 49070025 = 7056^2 + 7005^2 .

It is not a de Polignac number, because 98857161 - 2²¹ = 96760009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98857169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20905 + ... + 25193.

It is an arithmetic number, because the mean of its divisors is an integer number (6441435).

Almost surely, 2^98857161 is an apocalyptic number.

It is an amenable number.

98857161 is a deficient number, since it is larger than the sum of its proper divisors (55737279).

98857161 is a wasteful number, since it uses less digits than its factorization.

98857161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505 (or 4502 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 98857161 is about 9942.6938502601. The cubic root of 98857161 is about 462.3839081401.

The spelling of 98857161 in words is "ninety-eight million, eight hundred fifty-seven thousand, one hundred sixty-one".