1670017 has 2 divisors, whose sum is σ = 1670018. Its totient is φ = 1670016.

The previous prime is 1670003. The next prime is 1670057. The reversal of 1670017 is 7100761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 923521 + 746496 = 961^2 + 864^2 .

It is an emirp because it is prime and its reverse (7100761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1670017 - 2¹¹ = 1667969 is a prime.

It is a nialpdrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 1670017.

It is not a weakly prime, because it can be changed into another prime (1670057) 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 as a sum of consecutive naturals, namely, 835008 + 835009.

It is an arithmetic number, because the mean of its divisors is an integer number (835009).

2^1670017 is an apocalyptic number.

It is an amenable number.

1670017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670017 is an equidigital number, since it uses as much as digits as its factorization.

1670017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 1670017 is about 1292.2913758127. The cubic root of 1670017 is about 118.6425021635.

Adding to 1670017 its reverse (7100761), we get a palindrome (8770778).

The spelling of 1670017 in words is "one million, six hundred seventy thousand, seventeen".