997675395 has 16 divisors (see below), whose sum is σ = 1596684960. Its totient is φ = 531958784.

The previous prime is 997675391. The next prime is 997675403. The reversal of 997675395 is 593576799.

It is a Cunningham number, because it is equal to 31586²-1.

It is a cyclic number.

It is not a de Polignac number, because 997675395 - 2² = 997675391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (997675391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89491 + ... + 100019.

It is an arithmetic number, because the mean of its divisors is an integer number (99792810).

Almost surely, 2^997675395 is an apocalyptic number.

997675395 is a deficient number, since it is larger than the sum of its proper divisors (599009565).

997675395 is a wasteful number, since it uses less digits than its factorization.

997675395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16854.

The product of its digits is 16074450, while the sum is 60.

The square root of 997675395 is about 31585.9999841702. Note that the first 4 decimals coincide. The cubic root of 997675395 is about 999.2245304691.

The spelling of 997675395 in words is "nine hundred ninety-seven million, six hundred seventy-five thousand, three hundred ninety-five".