98763641 has 4 divisors (see below), whose sum is σ = 98980212. Its totient is φ = 98547072.

The previous prime is 98763631. The next prime is 98763661. The reversal of 98763641 is 14636789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14636789 = 359 ⋅40771.

It can be written as a sum of positive squares in 2 ways, for example, as 46635241 + 52128400 = 6829^2 + 7220^2 .

It is a cyclic number.

It is not a de Polignac number, because 98763641 - 2¹⁰ = 98762617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 98763592 and 98763601.

It is not an unprimeable number, because it can be changed into a prime (98763611) 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, 107600 + ... + 108513.

It is an arithmetic number, because the mean of its divisors is an integer number (24745053).

Almost surely, 2^98763641 is an apocalyptic number.

It is an amenable number.

98763641 is a deficient number, since it is larger than the sum of its proper divisors (216571).

98763641 is a wasteful number, since it uses less digits than its factorization.

98763641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216570.

The product of its digits is 217728, while the sum is 44.

The square root of 98763641 is about 9937.9897866722. The cubic root of 98763641 is about 462.2380553235.

The spelling of 98763641 in words is "ninety-eight million, seven hundred sixty-three thousand, six hundred forty-one".