997384315 has 8 divisors (see below), whose sum is σ = 1197673920. Its totient is φ = 797365632.

The previous prime is 997384307. The next prime is 997384331. The reversal of 997384315 is 513483799.

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 997384315 - 2³ = 997384307 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59539 + ... + 74428.

It is an arithmetic number, because the mean of its divisors is an integer number (149709240).

Almost surely, 2^997384315 is an apocalyptic number.

997384315 is a deficient number, since it is larger than the sum of its proper divisors (200289605).

997384315 is a wasteful number, since it uses less digits than its factorization.

997384315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135461.

The product of its digits is 816480, while the sum is 49.

The square root of 997384315 is about 31581.3919104273. The cubic root of 997384315 is about 999.1273436925.

The spelling of 997384315 in words is "nine hundred ninety-seven million, three hundred eighty-four thousand, three hundred fifteen".