1398179 has 4 divisors (see below), whose sum is σ = 1400784. Its totient is φ = 1395576.

The previous prime is 1398161. The next prime is 1398197. The reversal of 1398179 is 9718931.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1398161) and next prime (1398197).

It is a cyclic number.

It is not a de Polignac number, because 1398179 - 2¹² = 1394083 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1398139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167 + ... + 1680.

It is an arithmetic number, because the mean of its divisors is an integer number (350196).

2^1398179 is an apocalyptic number.

1398179 is a deficient number, since it is larger than the sum of its proper divisors (2605).

1398179 is an equidigital number, since it uses as much as digits as its factorization.

1398179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604.

The product of its digits is 13608, while the sum is 38.

The square root of 1398179 is about 1182.4461932790. The cubic root of 1398179 is about 111.8203700071.

The spelling of 1398179 in words is "one million, three hundred ninety-eight thousand, one hundred seventy-nine".