1697601 has 4 divisors (see below), whose sum is σ = 2263472. Its totient is φ = 1131732.

The previous prime is 1697587. The next prime is 1697621. The reversal of 1697601 is 1067961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1697601 - 2¹⁰ = 1696577 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1697621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282931 + ... + 282936.

It is an arithmetic number, because the mean of its divisors is an integer number (565868).

2^1697601 is an apocalyptic number.

It is an amenable number.

1697601 is a deficient number, since it is larger than the sum of its proper divisors (565871).

1697601 is an equidigital number, since it uses as much as digits as its factorization.

1697601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565870.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1697601 is about 1302.9201817456. The cubic root of 1697601 is about 119.2921522507.

The spelling of 1697601 in words is "one million, six hundred ninety-seven thousand, six hundred one".