98637811 has 2 divisors, whose sum is σ = 98637812. Its totient is φ = 98637810.

The previous prime is 98637809. The next prime is 98637817. The reversal of 98637811 is 11873689.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98637811 - 2¹ = 98637809 is a prime.

Together with 98637809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (98637817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49318905 + 49318906.

It is an arithmetic number, because the mean of its divisors is an integer number (49318906).

Almost surely, 2^98637811 is an apocalyptic number.

98637811 is a deficient number, since it is larger than the sum of its proper divisors (1).

98637811 is an equidigital number, since it uses as much as digits as its factorization.

98637811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The square root of 98637811 is about 9931.6570117982. The cubic root of 98637811 is about 462.0416668129.

The spelling of 98637811 in words is "ninety-eight million, six hundred thirty-seven thousand, eight hundred eleven".