1198641 has 8 divisors (see below), whose sum is σ = 1632384. Its totient is φ = 782000.

The previous prime is 1198621. The next prime is 1198643. The reversal of 1198641 is 1468911.

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

It is a cyclic number.

It is not a de Polignac number, because 1198641 - 2⁵ = 1198609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1198599 and 1198608.

It is not an unprimeable number, because it can be changed into a prime (1198643) 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, 4110 + ... + 4391.

It is an arithmetic number, because the mean of its divisors is an integer number (204048).

2^1198641 is an apocalyptic number.

It is an amenable number.

1198641 is a deficient number, since it is larger than the sum of its proper divisors (433743).

1198641 is an equidigital number, since it uses as much as digits as its factorization.

1198641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551.

The product of its digits is 1728, while the sum is 30.

The square root of 1198641 is about 1094.8246434932. The cubic root of 1198641 is about 106.2257264042.

The spelling of 1198641 in words is "one million, one hundred ninety-eight thousand, six hundred forty-one".