997315 has 8 divisors (see below), whose sum is σ = 1305648. Its totient is φ = 725280.

The previous prime is 997309. The next prime is 997319. The reversal of 997315 is 513799.

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

It is not a de Polignac number, because 997315 - 2³ = 997307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997319) 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, 9012 + ... + 9121.

It is an arithmetic number, because the mean of its divisors is an integer number (163206).

2⁹⁹⁷³¹⁵ is an apocalyptic number.

997315 is a deficient number, since it is larger than the sum of its proper divisors (308333).

997315 is a wasteful number, since it uses less digits than its factorization.

997315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18149.

The product of its digits is 8505, while the sum is 34.

The square root of 997315 is about 998.6565976350. The cubic root of 997315 is about 99.9104197778.

The spelling of 997315 in words is "nine hundred ninety-seven thousand, three hundred fifteen".