598118881 has 4 divisors (see below), whose sum is σ = 618743700. Its totient is φ = 577494064.

The previous prime is 598118827. The next prime is 598118891. The reversal of 598118881 is 188811895.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 492440481 + 105678400 = 22191^2 + 10280^2 .

It is a cyclic number.

It is not a de Polignac number, because 598118881 - 2⁷ = 598118753 is a prime.

It is a super-2 number, since 2×598118881² = 715492391617384322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 (598118821) 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, 10312366 + ... + 10312423.

It is an arithmetic number, because the mean of its divisors is an integer number (154685925).

Almost surely, 2^598118881 is an apocalyptic number.

It is an amenable number.

598118881 is a deficient number, since it is larger than the sum of its proper divisors (20624819).

598118881 is a wasteful number, since it uses less digits than its factorization.

598118881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20624818.

The product of its digits is 184320, while the sum is 49.

The square root of 598118881 is about 24456.4691032864. The cubic root of 598118881 is about 842.5502996323.

The spelling of 598118881 in words is "five hundred ninety-eight million, one hundred eighteen thousand, eight hundred eighty-one".