997475 has 12 divisors (see below), whose sum is σ = 1310184. Its totient is φ = 750720.

The previous prime is 997463. The next prime is 997511. The reversal of 997475 is 574799.

It is a happy number.

It is not a de Polignac number, because 997475 - 2⁸ = 997219 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 749 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (109182).

2⁹⁹⁷⁴⁷⁵ is an apocalyptic number.

997475 is a deficient number, since it is larger than the sum of its proper divisors (312709).

997475 is a wasteful number, since it uses less digits than its factorization.

997475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374 (or 2369 counting only the distinct ones).

The product of its digits is 79380, while the sum is 41.

The square root of 997475 is about 998.7367020391. The cubic root of 997475 is about 99.9157623935.

The spelling of 997475 in words is "nine hundred ninety-seven thousand, four hundred seventy-five".