898830557 has 2 divisors, whose sum is σ = 898830558. Its totient is φ = 898830556.

The previous prime is 898830539. The next prime is 898830563. The reversal of 898830557 is 755038898.

898830557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472366756 + 426463801 = 21734^2 + 20651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-898830557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 898830499 and 898830508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898835557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449415278 + 449415279.

It is an arithmetic number, because the mean of its divisors is an integer number (449415279).

Almost surely, 2^898830557 is an apocalyptic number.

It is an amenable number.

898830557 is a deficient number, since it is larger than the sum of its proper divisors (1).

898830557 is an equidigital number, since it uses as much as digits as its factorization.

898830557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The square root of 898830557 is about 29980.5029477492. The cubic root of 898830557 is about 965.0710237934.

The spelling of 898830557 in words is "eight hundred ninety-eight million, eight hundred thirty thousand, five hundred fifty-seven".