315646897 has 8 divisors (see below), whose sum is σ = 319238496. Its totient is φ = 312067392.

The previous prime is 315646843. The next prime is 315646909. The reversal of 315646897 is 798646513.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315646897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315646897.

It is not an unprimeable number, because it can be changed into a prime (315646997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55833 + ... + 61225.

It is an arithmetic number, because the mean of its divisors is an integer number (39904812).

Almost surely, 2^315646897 is an apocalyptic number.

It is an amenable number.

315646897 is a deficient number, since it is larger than the sum of its proper divisors (3591599).

315646897 is a wasteful number, since it uses less digits than its factorization.

315646897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047.

The product of its digits is 1088640, while the sum is 49.

The square root of 315646897 is about 17766.4542607691. The cubic root of 315646897 is about 680.8746652614.

The spelling of 315646897 in words is "three hundred fifteen million, six hundred forty-six thousand, eight hundred ninety-seven".