1672117 has 2 divisors, whose sum is σ = 1672118. Its totient is φ = 1672116.

The previous prime is 1672091. The next prime is 1672129. The reversal of 1672117 is 7112761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313316 + 358801 = 1146^2 + 599^2 .

It is an emirp because it is prime and its reverse (7112761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672117 - 2¹⁵ = 1639349 is a prime.

1672117 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1672091 and 1672100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1675117) 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, 836058 + 836059.

It is an arithmetic number, because the mean of its divisors is an integer number (836059).

2^1672117 is an apocalyptic number.

It is an amenable number.

1672117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672117 is an equidigital number, since it uses as much as digits as its factorization.

1672117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 588, while the sum is 25.

The square root of 1672117 is about 1293.1036308046. The cubic root of 1672117 is about 118.6922112173.

Adding to 1672117 its reverse (7112761), we get a palindrome (8784878).

The spelling of 1672117 in words is "one million, six hundred seventy-two thousand, one hundred seventeen".