1997832 has 16 divisors (see below), whose sum is σ = 4994640. Its totient is φ = 665936.

The previous prime is 1997813. The next prime is 1997833. The reversal of 1997832 is 2387991.

It is not an unprimeable number, because it can be changed into a prime (1997833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41598 + ... + 41645.

It is an arithmetic number, because the mean of its divisors is an integer number (312165).

2^1997832 is an apocalyptic number.

1997832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1997832 is an abundant number, since it is smaller than the sum of its proper divisors (2996808).

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

1997832 is a wasteful number, since it uses less digits than its factorization.

1997832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83252 (or 83248 counting only the distinct ones).

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

The square root of 1997832 is about 1413.4468507871. The cubic root of 1997832 is about 125.9465633826.

The spelling of 1997832 in words is "one million, nine hundred ninety-seven thousand, eight hundred thirty-two".