1997324 has 12 divisors (see below), whose sum is σ = 3994704. Its totient is φ = 855984.

The previous prime is 1997321. The next prime is 1997339. The reversal of 1997324 is 4237991.

1997324 is an admirable number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1997321) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35639 + ... + 35694.

It is an arithmetic number, because the mean of its divisors is an integer number (332892).

2^1997324 is an apocalyptic number.

1997324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1997324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1997324 is a wasteful number, since it uses less digits than its factorization.

1997324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71344 (or 71342 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 1997324 is about 1413.2671368146. The cubic root of 1997324 is about 125.9358874302.

The spelling of 1997324 in words is "one million, nine hundred ninety-seven thousand, three hundred twenty-four".