898089891 has 8 divisors (see below), whose sum is σ = 1260477120. Its totient is φ = 567214632.

The previous prime is 898089887. The next prime is 898089911. The reversal of 898089891 is 198980898.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 898089891 - 2² = 898089887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (898089691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7877925 + ... + 7878038.

It is an arithmetic number, because the mean of its divisors is an integer number (157559640).

Almost surely, 2^898089891 is an apocalyptic number.

898089891 is a deficient number, since it is larger than the sum of its proper divisors (362387229).

898089891 is a wasteful number, since it uses less digits than its factorization.

898089891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15755985.

The product of its (nonzero) digits is 2985984, while the sum is 60.

The square root of 898089891 is about 29968.1479407720. The cubic root of 898089891 is about 964.8058675051.

It can be divided in two parts, 89808 and 9891, that added together give a palindrome (99699).

The spelling of 898089891 in words is "eight hundred ninety-eight million, eighty-nine thousand, eight hundred ninety-one".