997532 has 6 divisors (see below), whose sum is σ = 1745688. Its totient is φ = 498764.

The previous prime is 997511. The next prime is 997541. The reversal of 997532 is 235799.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 997492 and 997501.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 124688 + ... + 124695.

It is an arithmetic number, because the mean of its divisors is an integer number (290948).

2⁹⁹⁷⁵³² is an apocalyptic number.

It is an amenable number.

997532 is a deficient number, since it is larger than the sum of its proper divisors (748156).

997532 is a wasteful number, since it uses less digits than its factorization.

997532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249387 (or 249385 counting only the distinct ones).

The product of its digits is 17010, while the sum is 35.

The square root of 997532 is about 998.7652376810. The cubic root of 997532 is about 99.9176655623.

The spelling of 997532 in words is "nine hundred ninety-seven thousand, five hundred thirty-two".