98549191 has 4 divisors (see below), whose sum is σ = 106129912. Its totient is φ = 90968472.

The previous prime is 98549183. The next prime is 98549201. The reversal of 98549191 is 19194589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19194589 = 1871 ⋅10259.

It is a cyclic number.

It is not a de Polignac number, because 98549191 - 2³ = 98549183 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 (98549111) 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, 3790341 + ... + 3790366.

It is an arithmetic number, because the mean of its divisors is an integer number (26532478).

Almost surely, 2^98549191 is an apocalyptic number.

98549191 is a deficient number, since it is larger than the sum of its proper divisors (7580721).

98549191 is a wasteful number, since it uses less digits than its factorization.

98549191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580720.

The product of its digits is 116640, while the sum is 46.

The square root of 98549191 is about 9927.1945180902. The cubic root of 98549191 is about 461.9032533562.

It can be divided in two parts, 985 and 49191, that added together give a square (50176 = 224²).

The spelling of 98549191 in words is "ninety-eight million, five hundred forty-nine thousand, one hundred ninety-one".