997485 has 8 divisors (see below), whose sum is σ = 1596000. Its totient is φ = 531984.

The previous prime is 997463. The next prime is 997511. The reversal of 997485 is 584799.

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

It is not a de Polignac number, because 997485 - 2⁵ = 997453 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 33235 + ... + 33264.

It is an arithmetic number, because the mean of its divisors is an integer number (199500).

2⁹⁹⁷⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

997485 is a deficient number, since it is larger than the sum of its proper divisors (598515).

997485 is a wasteful number, since it uses less digits than its factorization.

997485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66507.

The product of its digits is 90720, while the sum is 42.

The square root of 997485 is about 998.7417083511. The cubic root of 997485 is about 99.9160962880.

Subtracting from 997485 its reverse (584799), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 997485 in words is "nine hundred ninety-seven thousand, four hundred eighty-five".