598340091 has 4 divisors (see below), whose sum is σ = 797786792. Its totient is φ = 398893392.

The previous prime is 598340089. The next prime is 598340107. The reversal of 598340091 is 190043895.

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

It is not a de Polignac number, because 598340091 - 2¹ = 598340089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (598340591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99723346 + ... + 99723351.

It is an arithmetic number, because the mean of its divisors is an integer number (199446698).

Almost surely, 2^598340091 is an apocalyptic number.

598340091 is a deficient number, since it is larger than the sum of its proper divisors (199446701).

598340091 is a wasteful number, since it uses less digits than its factorization.

598340091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199446700.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 598340091 is about 24460.9912104968. The cubic root of 598340091 is about 842.6541572350.

The spelling of 598340091 in words is "five hundred ninety-eight million, three hundred forty thousand, ninety-one".