898155361 has 2 divisors, whose sum is σ = 898155362. Its totient is φ = 898155360.

The previous prime is 898155263. The next prime is 898155397. The reversal of 898155361 is 163551898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 898140961 + 14400 = 29969^2 + 120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-898155361 is a prime.

It is not a weakly prime, because it can be changed into another prime (898155161) 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, 449077680 + 449077681.

It is an arithmetic number, because the mean of its divisors is an integer number (449077681).

Almost surely, 2^898155361 is an apocalyptic number.

It is an amenable number.

898155361 is a deficient number, since it is larger than the sum of its proper divisors (1).

898155361 is an equidigital number, since it uses as much as digits as its factorization.

898155361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 46.

The square root of 898155361 is about 29969.2402472936. The cubic root of 898155361 is about 964.8293114483.

The spelling of 898155361 in words is "eight hundred ninety-eight million, one hundred fifty-five thousand, three hundred sixty-one".