898813381 has 4 divisors (see below), whose sum is σ = 898915564. Its totient is φ = 898711200.

The previous prime is 898813313. The next prime is 898813387. The reversal of 898813381 is 183318898.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 212897281 + 685916100 = 14591^2 + 26190^2 .

It is a cyclic number.

It is not a de Polignac number, because 898813381 - 2²⁷ = 764595653 is a prime.

It is a super-2 number, since 2×898813381² = 1615730987729302322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898813387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36510 + ... + 55951.

It is an arithmetic number, because the mean of its divisors is an integer number (224728891).

Almost surely, 2^898813381 is an apocalyptic number.

It is an amenable number.

898813381 is a deficient number, since it is larger than the sum of its proper divisors (102183).

898813381 is an equidigital number, since it uses as much as digits as its factorization.

898813381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102182.

The product of its digits is 331776, while the sum is 49.

The square root of 898813381 is about 29980.2164935479. The cubic root of 898813381 is about 965.0648764852.

The spelling of 898813381 in words is "eight hundred ninety-eight million, eight hundred thirteen thousand, three hundred eighty-one".