1316688 has 20 divisors (see below), whose sum is σ = 3401568. Its totient is φ = 438880.

The previous prime is 1316677. The next prime is 1316699. The reversal of 1316688 is 8866131.

It is an interprime number because it is at equal distance from previous prime (1316677) and next prime (1316699).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13668 + ... + 13763.

2^1316688 is an apocalyptic number.

It is an amenable number.

1316688 is an abundant number, since it is smaller than the sum of its proper divisors (2084880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316688 is a wasteful number, since it uses less digits than its factorization.

1316688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27442 (or 27436 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1316688 is about 1147.4702610525. The cubic root of 1316688 is about 109.6043083536.

The spelling of 1316688 in words is "one million, three hundred sixteen thousand, six hundred eighty-eight".