98799191 has 4 divisors (see below), whose sum is σ = 103094832. Its totient is φ = 94503552.

The previous prime is 98799187. The next prime is 98799203. The reversal of 98799191 is 19199789.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98799191 - 2² = 98799187 is a prime.

It is a super-2 number, since 2×98799191² = 19522560284508962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98799101) 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, 2147786 + ... + 2147831.

It is an arithmetic number, because the mean of its divisors is an integer number (25773708).

Almost surely, 2^98799191 is an apocalyptic number.

98799191 is a deficient number, since it is larger than the sum of its proper divisors (4295641).

98799191 is a wasteful number, since it uses less digits than its factorization.

98799191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295640.

The product of its digits is 367416, while the sum is 53.

The square root of 98799191 is about 9939.7782168417. The cubic root of 98799191 is about 462.2935095759.

The spelling of 98799191 in words is "ninety-eight million, seven hundred ninety-nine thousand, one hundred ninety-one".