898128013 has 2 divisors, whose sum is σ = 898128014. Its totient is φ = 898128012.

The previous prime is 898127959. The next prime is 898128017. The reversal of 898128013 is 310821898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753118249 + 145009764 = 27443^2 + 12042^2 .

It is a cyclic number.

It is not a de Polignac number, because 898128013 - 2⁹ = 898127501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898128017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449064006 + 449064007.

It is an arithmetic number, because the mean of its divisors is an integer number (449064007).

Almost surely, 2^898128013 is an apocalyptic number.

It is an amenable number.

898128013 is a deficient number, since it is larger than the sum of its proper divisors (1).

898128013 is an equidigital number, since it uses as much as digits as its factorization.

898128013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 898128013 is about 29968.7839759974. The cubic root of 898128013 is about 964.8195186289.

The spelling of 898128013 in words is "eight hundred ninety-eight million, one hundred twenty-eight thousand, thirteen".