98138811 has 8 divisors (see below), whose sum is σ = 130924864. Its totient is φ = 65389320.

The previous prime is 98138809. The next prime is 98138851. The reversal of 98138811 is 11883189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 98138811 - 2¹ = 98138809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98138811.

It is not an unprimeable number, because it can be changed into a prime (98138851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2101 + ... + 14166.

It is an arithmetic number, because the mean of its divisors is an integer number (16365608).

Almost surely, 2^98138811 is an apocalyptic number.

98138811 is a deficient number, since it is larger than the sum of its proper divisors (32786053).

98138811 is a wasteful number, since it uses less digits than its factorization.

98138811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18281.

The product of its digits is 13824, while the sum is 39.

The square root of 98138811 is about 9906.5034699434. The cubic root of 98138811 is about 461.2612065344.

The spelling of 98138811 in words is "ninety-eight million, one hundred thirty-eight thousand, eight hundred eleven".