1317898 has 8 divisors (see below), whose sum is σ = 2014308. Its totient is φ = 646464.

The previous prime is 1317887. The next prime is 1317917. The reversal of 1317898 is 8987131.

It can be written as a sum of positive squares in 2 ways, for example, as 1306449 + 11449 = 1143^2 + 107^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111 + ... + 6322.

2^1317898 is an apocalyptic number.

1317898 is a deficient number, since it is larger than the sum of its proper divisors (696410).

1317898 is a wasteful number, since it uses less digits than its factorization.

1317898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12488.

The product of its digits is 12096, while the sum is 37.

The square root of 1317898 is about 1147.9973867566. The cubic root of 1317898 is about 109.6378725208.

The spelling of 1317898 in words is "one million, three hundred seventeen thousand, eight hundred ninety-eight".