1674289 has 2 divisors, whose sum is σ = 1674290. Its totient is φ = 1674288.

The previous prime is 1674271. The next prime is 1674301. The reversal of 1674289 is 9824761.

1674289 = T₁₀₅₅ + T₁₀₅₆ + T₁₀₅₇.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034289 + 640000 = 1017^2 + 800^2 .

It is an emirp because it is prime and its reverse (9824761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1674289 - 2⁷ = 1674161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1674209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837144 + 837145.

It is an arithmetic number, because the mean of its divisors is an integer number (837145).

2^1674289 is an apocalyptic number.

1674289 is the 1057-th centered triangular number.

It is an amenable number.

1674289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1674289 is an equidigital number, since it uses as much as digits as its factorization.

1674289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 1674289 is about 1293.9431981351. The cubic root of 1674289 is about 118.7435808164.

It can be divided in two parts, 16 and 74289, that added together give a triangular number (74305 = T₃₈₅).

The spelling of 1674289 in words is "one million, six hundred seventy-four thousand, two hundred eighty-nine".