1997382 has 16 divisors (see below), whose sum is σ = 4008960. Its totient is φ = 663432.

The previous prime is 1997351. The next prime is 1997407. The reversal of 1997382 is 2837991.

It is a self number, because there is not a number n which added to its sum of digits gives 1997382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419 + ... + 3137.

It is an arithmetic number, because the mean of its divisors is an integer number (250560).

2^1997382 is an apocalyptic number.

1997382 is an abundant number, since it is smaller than the sum of its proper divisors (2011578).

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

1997382 is a wasteful number, since it uses less digits than its factorization.

1997382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187.

The product of its digits is 27216, while the sum is 39.

The square root of 1997382 is about 1413.2876564946. The cubic root of 1997382 is about 125.9371064297.

The spelling of 1997382 in words is "one million, nine hundred ninety-seven thousand, three hundred eighty-two".