316387 has 8 divisors (see below), whose sum is σ = 344736. Its totient is φ = 289152.

The previous prime is 316373. The next prime is 316391. The reversal of 316387 is 783613.

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 316387 - 2⁷ = 316259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316087) 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, 378 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2³¹⁶³⁸⁷ is an apocalyptic number.

316387 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

316387 is a deficient number, since it is larger than the sum of its proper divisors (28349).

316387 is a wasteful number, since it uses less digits than its factorization.

316387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its digits is 3024, while the sum is 28.

The square root of 316387 is about 562.4828886286. The cubic root of 316387 is about 68.1406402942.

It can be divided in two parts, 316 and 387, that added together give a triangular number (703 = T₃₇).

The spelling of 316387 in words is "three hundred sixteen thousand, three hundred eighty-seven".