1997075 has 24 divisors (see below), whose sum is σ = 2714112. Its totient is φ = 1451520.

The previous prime is 1997059. The next prime is 1997081. The reversal of 1997075 is 5707991.

It is not a de Polignac number, because 1997075 - 2⁴ = 1997059 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15662 + ... + 15788.

It is an arithmetic number, because the mean of its divisors is an integer number (113088).

2^1997075 is an apocalyptic number.

1997075 is a deficient number, since it is larger than the sum of its proper divisors (717037).

1997075 is a wasteful number, since it uses less digits than its factorization.

1997075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 38.

The square root of 1997075 is about 1413.1790403201. The cubic root of 1997075 is about 125.9306538711.

The spelling of 1997075 in words is "one million, nine hundred ninety-seven thousand, seventy-five".