1673569 has 2 divisors, whose sum is σ = 1673570. Its totient is φ = 1673568.

The previous prime is 1673563. The next prime is 1673591. The reversal of 1673569 is 9653761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1595169 + 78400 = 1263^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673569 - 2¹¹ = 1671521 is a prime.

It is a super-2 number, since 2×1673569² = 5601666395522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1673563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836784 + 836785.

It is an arithmetic number, because the mean of its divisors is an integer number (836785).

2^1673569 is an apocalyptic number.

It is an amenable number.

1673569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673569 is an equidigital number, since it uses as much as digits as its factorization.

1673569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 37.

The square root of 1673569 is about 1293.6649488952. The cubic root of 1673569 is about 118.7265571452.

The spelling of 1673569 in words is "one million, six hundred seventy-three thousand, five hundred sixty-nine".