98318861 has 4 divisors (see below), whose sum is σ = 100716924. Its totient is φ = 95920800.

The previous prime is 98318851. The next prime is 98318893. The reversal of 98318861 is 16881389.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16881389 = 7 ⋅2411627.

It can be written as a sum of positive squares in 2 ways, for example, as 44809636 + 53509225 = 6694^2 + 7315^2 .

It is a cyclic number.

It is not a de Polignac number, because 98318861 - 2⁶ = 98318797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98318821) 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, 1198970 + ... + 1199051.

It is an arithmetic number, because the mean of its divisors is an integer number (25179231).

Almost surely, 2^98318861 is an apocalyptic number.

It is an amenable number.

98318861 is a deficient number, since it is larger than the sum of its proper divisors (2398063).

98318861 is a wasteful number, since it uses less digits than its factorization.

98318861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398062.

The product of its digits is 82944, while the sum is 44.

The square root of 98318861 is about 9915.5867703329. The cubic root of 98318861 is about 461.5431179138.

The spelling of 98318861 in words is "ninety-eight million, three hundred eighteen thousand, eight hundred sixty-one".