98011911 has 4 divisors (see below), whose sum is σ = 130682552. Its totient is φ = 65341272.

The previous prime is 98011897. The next prime is 98011913. The reversal of 98011911 is 11911089.

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: 11911089 = 3 ⋅3970363.

It is not a de Polignac number, because 98011911 - 2¹⁹ = 97487623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98011913) 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, 16335316 + ... + 16335321.

It is an arithmetic number, because the mean of its divisors is an integer number (32670638).

Almost surely, 2^98011911 is an apocalyptic number.

98011911 is a deficient number, since it is larger than the sum of its proper divisors (32670641).

98011911 is a wasteful number, since it uses less digits than its factorization.

98011911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32670640.

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 98011911 is about 9900.0965146811. The cubic root of 98011911 is about 461.0623069888.

The spelling of 98011911 in words is "ninety-eight million, eleven thousand, nine hundred eleven".