891484198 has 12 divisors (see below), whose sum is σ = 1469844180. Its totient is φ = 405219980.

The previous prime is 891484189. The next prime is 891484207.

891484198 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (891484189) and next prime (891484207).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1841668 + ... + 1842151.

It is an arithmetic number, because the mean of its divisors is an integer number (122487015).

Almost surely, 2^891484198 is an apocalyptic number.

891484198 is a deficient number, since it is larger than the sum of its proper divisors (578359982).

891484198 is a wasteful number, since it uses less digits than its factorization.

891484198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683843 (or 3683832 counting only the distinct ones).

The product of its digits is 663552, while the sum is 52.

The square root of 891484198 is about 29857.7326332727. The cubic root of 891484198 is about 962.4345751448.

The spelling of 891484198 in words is "eight hundred ninety-one million, four hundred eighty-four thousand, one hundred ninety-eight".