1997536 has 12 divisors (see below), whose sum is σ = 3932712. Its totient is φ = 998752.

The previous prime is 1997531. The next prime is 1997539. The reversal of 1997536 is 6357991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31180 + ... + 31243.

It is an arithmetic number, because the mean of its divisors is an integer number (327726).

2^1997536 is an apocalyptic number.

1997536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1997536 is a deficient number, since it is larger than the sum of its proper divisors (1935176).

1997536 is an equidigital number, since it uses as much as digits as its factorization.

1997536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62433 (or 62425 counting only the distinct ones).

The product of its digits is 51030, while the sum is 40.

The square root of 1997536 is about 1413.3421383374. The cubic root of 1997536 is about 125.9403429689.

The spelling of 1997536 in words is "one million, nine hundred ninety-seven thousand, five hundred thirty-six".