1725697 has 2 divisors, whose sum is σ = 1725698. Its totient is φ = 1725696.

The previous prime is 1725683. The next prime is 1725707. The reversal of 1725697 is 7965271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1700416 + 25281 = 1304^2 + 159^2 .

It is an emirp because it is prime and its reverse (7965271) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1725697 is a prime.

1725697 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1725617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862848 + 862849.

It is an arithmetic number, because the mean of its divisors is an integer number (862849).

2^1725697 is an apocalyptic number.

It is an amenable number.

1725697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1725697 is an equidigital number, since it uses as much as digits as its factorization.

1725697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 1725697 is about 1313.6578702234. The cubic root of 1725697 is about 119.9466661141.

The spelling of 1725697 in words is "one million, seven hundred twenty-five thousand, six hundred ninety-seven".