997488 has 40 divisors (see below), whose sum is σ = 2864400. Its totient is φ = 332352.

The previous prime is 997463. The next prime is 997511. The reversal of 997488 is 884799.

997488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

997488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (71610).

2⁹⁹⁷⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

997488 is an abundant number, since it is smaller than the sum of its proper divisors (1866912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997488 is a wasteful number, since it uses less digits than its factorization.

997488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326 (or 2314 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 997488 is about 998.7432102397. The cubic root of 997488 is about 99.9161964559.

It can be divided in two parts, 997 and 488, that added together give a triangular number (1485 = T₅₄).

The spelling of 997488 in words is "nine hundred ninety-seven thousand, four hundred eighty-eight".