898455853 has 2 divisors, whose sum is σ = 898455854. Its totient is φ = 898455852.

The previous prime is 898455851. The next prime is 898455911. The reversal of 898455853 is 358554898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 890604649 + 7851204 = 29843^2 + 2802^2 .

It is a cyclic number.

It is not a de Polignac number, because 898455853 - 2¹ = 898455851 is a prime.

Together with 898455851, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 898455794 and 898455803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (898455851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449227926 + 449227927.

It is an arithmetic number, because the mean of its divisors is an integer number (449227927).

Almost surely, 2^898455853 is an apocalyptic number.

It is an amenable number.

898455853 is a deficient number, since it is larger than the sum of its proper divisors (1).

898455853 is an equidigital number, since it uses as much as digits as its factorization.

898455853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912000, while the sum is 55.

The square root of 898455853 is about 29974.2531683443. The cubic root of 898455853 is about 964.9368990570.

The spelling of 898455853 in words is "eight hundred ninety-eight million, four hundred fifty-five thousand, eight hundred fifty-three".