1698041 has 4 divisors (see below), whose sum is σ = 1743972. Its totient is φ = 1652112.

The previous prime is 1698029. The next prime is 1698043. The reversal of 1698041 is 1408961.

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 958441 + 739600 = 979^2 + 860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1698041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1697995 and 1698013.

It is not an unprimeable number, because it can be changed into a prime (1698043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22910 + ... + 22983.

It is an arithmetic number, because the mean of its divisors is an integer number (435993).

2^1698041 is an apocalyptic number.

It is an amenable number.

1698041 is a deficient number, since it is larger than the sum of its proper divisors (45931).

1698041 is an equidigital number, since it uses as much as digits as its factorization.

1698041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45930.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1698041 is about 1303.0890222851. The cubic root of 1698041 is about 119.3024577765.

The spelling of 1698041 in words is "one million, six hundred ninety-eight thousand, forty-one".