1997795 has 8 divisors (see below), whose sum is σ = 2474880. Its totient is φ = 1546560.

The previous prime is 1997773. The next prime is 1997813. The reversal of 1997795 is 5977991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1997795 - 2⁶ = 1997731 is a prime.

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, 6290 + ... + 6599.

It is an arithmetic number, because the mean of its divisors is an integer number (309360).

2^1997795 is an apocalyptic number.

1997795 is a deficient number, since it is larger than the sum of its proper divisors (477085).

1997795 is a wasteful number, since it uses less digits than its factorization.

1997795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925.

The product of its digits is 178605, while the sum is 47.

The square root of 1997795 is about 1413.4337621551. The cubic root of 1997795 is about 125.9457858645.

The spelling of 1997795 in words is "one million, nine hundred ninety-seven thousand, seven hundred ninety-five".