1997037 has 12 divisors (see below), whose sum is σ = 3296800. Its totient is φ = 1141128.

The previous prime is 1997029. The next prime is 1997053. The reversal of 1997037 is 7307991.

It is not a de Polignac number, because 1997037 - 2³ = 1997029 is a prime.

It is a Duffinian number.

1997037 is a lucky number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1996992 and 1997010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15787 + ... + 15912.

2^1997037 is an apocalyptic number.

It is an amenable number.

1997037 is a deficient number, since it is larger than the sum of its proper divisors (1299763).

1997037 is a wasteful number, since it uses less digits than its factorization.

1997037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31712 (or 31709 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 1997037 is about 1413.1655953921. The cubic root of 1997037 is about 125.9298551371.

Subtracting from 1997037 its sum of digits (36), we obtain a triangular number (1997001 = T₁₉₉₈).

The spelling of 1997037 in words is "one million, nine hundred ninety-seven thousand, thirty-seven".