98818393 has 4 divisors (see below), whose sum is σ = 100920960. Its totient is φ = 96715828.

The previous prime is 98818361. The next prime is 98818397. The reversal of 98818393 is 39381889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39381889 = 19 ⋅2072731.

It is a cyclic number.

It is not a de Polignac number, because 98818393 - 2⁵ = 98818361 is a prime.

It is a super-3 number, since 3×98818393³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98818397) 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, 1051213 + ... + 1051306.

It is an arithmetic number, because the mean of its divisors is an integer number (25230240).

Almost surely, 2^98818393 is an apocalyptic number.

It is an amenable number.

98818393 is a deficient number, since it is larger than the sum of its proper divisors (2102567).

98818393 is a wasteful number, since it uses less digits than its factorization.

98818393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102566.

The product of its digits is 373248, while the sum is 49.

The square root of 98818393 is about 9940.7440868378. The cubic root of 98818393 is about 462.3234571388.

The spelling of 98818393 in words is "ninety-eight million, eight hundred eighteen thousand, three hundred ninety-three".