598840381 has 2 divisors, whose sum is σ = 598840382. Its totient is φ = 598840380.

The previous prime is 598840379. The next prime is 598840391. The reversal of 598840381 is 183048895.

598840381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561263481 + 37576900 = 23691^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 598840381 - 2¹ = 598840379 is a prime.

It is a super-2 number, since 2×598840381² = 717219603832450322, which contains 22 as substring.

Together with 598840379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (598840331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299420190 + 299420191.

It is an arithmetic number, because the mean of its divisors is an integer number (299420191).

Almost surely, 2^598840381 is an apocalyptic number.

It is an amenable number.

598840381 is a deficient number, since it is larger than the sum of its proper divisors (1).

598840381 is an equidigital number, since it uses as much as digits as its factorization.

598840381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 598840381 is about 24471.2153560055. The cubic root of 598840381 is about 842.8889479018. Note that the first 3 decimals are identical.

The spelling of 598840381 in words is "five hundred ninety-eight million, eight hundred forty thousand, three hundred eighty-one".