1673669 has 2 divisors, whose sum is σ = 1673670. Its totient is φ = 1673668.

The previous prime is 1673663. The next prime is 1673681. The reversal of 1673669 is 9663761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 925444 + 748225 = 962^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673669 - 2¹⁶ = 1608133 is a prime.

It is a super-3 number, since 3×1673669³ = 14064683742333231927, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836834 + 836835.

It is an arithmetic number, because the mean of its divisors is an integer number (836835).

2^1673669 is an apocalyptic number.

It is an amenable number.

1673669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673669 is an equidigital number, since it uses as much as digits as its factorization.

1673669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 1673669 is about 1293.7035982017. The cubic root of 1673669 is about 118.7289218359.

The spelling of 1673669 in words is "one million, six hundred seventy-three thousand, six hundred sixty-nine".