1398371 has 8 divisors (see below), whose sum is σ = 1515360. Its totient is φ = 1282752.

The previous prime is 1398367. The next prime is 1398401. The reversal of 1398371 is 1738931.

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 1398371 - 2² = 1398367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1398871) 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 7 ways as a sum of consecutive naturals, for example, 3215 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (189420).

2^1398371 is an apocalyptic number.

1398371 is a deficient number, since it is larger than the sum of its proper divisors (116989).

1398371 is a wasteful number, since it uses less digits than its factorization.

1398371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its digits is 4536, while the sum is 32.

The square root of 1398371 is about 1182.5273781186. The cubic root of 1398371 is about 111.8254882188.

The spelling of 1398371 in words is "one million, three hundred ninety-eight thousand, three hundred seventy-one".