1997246 has 4 divisors (see below), whose sum is σ = 2995872. Its totient is φ = 998622.

The previous prime is 1997243. The next prime is 1997257. The reversal of 1997246 is 6427991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6427991 = 59 ⋅108949.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499310 + ... + 499313.

It is an arithmetic number, because the mean of its divisors is an integer number (748968).

2^1997246 is an apocalyptic number.

1997246 is a deficient number, since it is larger than the sum of its proper divisors (998626).

1997246 is an equidigital number, since it uses as much as digits as its factorization.

1997246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998625.

The product of its digits is 27216, while the sum is 38.

The square root of 1997246 is about 1413.2395409130. The cubic root of 1997246 is about 125.9342480488.

The spelling of 1997246 in words is "one million, nine hundred ninety-seven thousand, two hundred forty-six".