98040811 has 4 divisors (see below), whose sum is σ = 106953624. Its totient is φ = 89128000.

The previous prime is 98040791. The next prime is 98040829. The reversal of 98040811 is 11804089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11804089 = 11 ⋅1073099.

It is a cyclic number.

It is not a de Polignac number, because 98040811 - 2¹⁷ = 97909739 is a prime.

It is a super-2 number, since 2×98040811² = 19224001243075442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98040211) 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, 4456390 + ... + 4456411.

It is an arithmetic number, because the mean of its divisors is an integer number (26738406).

Almost surely, 2^98040811 is an apocalyptic number.

98040811 is a deficient number, since it is larger than the sum of its proper divisors (8912813).

98040811 is a wasteful number, since it uses less digits than its factorization.

98040811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912812.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 98040811 is about 9901.5559888333. Note that the first 3 decimals coincide. The cubic root of 98040811 is about 461.1076191388.

The spelling of 98040811 in words is "ninety-eight million, forty thousand, eight hundred eleven".