1316398 has 4 divisors (see below), whose sum is σ = 1974600. Its totient is φ = 658198.

The previous prime is 1316389. The next prime is 1316401. The reversal of 1316398 is 8936131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329098 + ... + 329101.

It is an arithmetic number, because the mean of its divisors is an integer number (493650).

2^1316398 is an apocalyptic number.

1316398 is a deficient number, since it is larger than the sum of its proper divisors (658202).

1316398 is an equidigital number, since it uses as much as digits as its factorization.

1316398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658201.

The product of its digits is 3888, while the sum is 31.

The square root of 1316398 is about 1147.3438891631. The cubic root of 1316398 is about 109.5962609945.

The spelling of 1316398 in words is "one million, three hundred sixteen thousand, three hundred ninety-eight".