1098841 has 4 divisors (see below), whose sum is σ = 1125684. Its totient is φ = 1072000.

The previous prime is 1098833. The next prime is 1098847. The reversal of 1098841 is 1488901.

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 177241 + 921600 = 421^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098841 - 2³ = 1098833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098847) 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, 13360 + ... + 13441.

It is an arithmetic number, because the mean of its divisors is an integer number (281421).

2^1098841 is an apocalyptic number.

It is an amenable number.

1098841 is a deficient number, since it is larger than the sum of its proper divisors (26843).

1098841 is an equidigital number, since it uses as much as digits as its factorization.

1098841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26842.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1098841 is about 1048.2561709811. The cubic root of 1098841 is about 103.1917438761.

The spelling of 1098841 in words is "one million, ninety-eight thousand, eight hundred forty-one".