1997342 has 8 divisors (see below), whose sum is σ = 3006696. Its totient is φ = 995112.

The previous prime is 1997341. The next prime is 1997351. The reversal of 1997342 is 2437991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (375837).

2^1997342 is an apocalyptic number.

1997342 is a deficient number, since it is larger than the sum of its proper divisors (1009354).

1997342 is a wasteful number, since it uses less digits than its factorization.

1997342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562.

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

The square root of 1997342 is about 1413.2735050230. The cubic root of 1997342 is about 125.9362657429.

The spelling of 1997342 in words is "one million, nine hundred ninety-seven thousand, three hundred forty-two".