1716641 has 4 divisors (see below), whose sum is σ = 1732500. Its totient is φ = 1700784.

The previous prime is 1716623. The next prime is 1716647. The reversal of 1716641 is 1466171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 495616 + 1221025 = 704^2 + 1105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1716641 - 2⁶ = 1716577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1716641.

It is not an unprimeable number, because it can be changed into a prime (1716647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7766 + ... + 7983.

It is an arithmetic number, because the mean of its divisors is an integer number (433125).

2^1716641 is an apocalyptic number.

It is an amenable number.

1716641 is a deficient number, since it is larger than the sum of its proper divisors (15859).

1716641 is a wasteful number, since it uses less digits than its factorization.

1716641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15858.

The product of its digits is 1008, while the sum is 26.

The square root of 1716641 is about 1310.2064722783. The cubic root of 1716641 is about 119.7364819273.

The spelling of 1716641 in words is "one million, seven hundred sixteen thousand, six hundred forty-one".