1676561 has 2 divisors, whose sum is σ = 1676562. Its totient is φ = 1676560.

The previous prime is 1676551. The next prime is 1676569. The reversal of 1676561 is 1656761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1380625 + 295936 = 1175^2 + 544^2 .

It is an emirp because it is prime and its reverse (1656761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1676561 - 2⁶ = 1676497 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (1676569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838280 + 838281.

It is an arithmetic number, because the mean of its divisors is an integer number (838281).

2^1676561 is an apocalyptic number.

It is an amenable number.

1676561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1676561 is an equidigital number, since it uses as much as digits as its factorization.

1676561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 1676561 is about 1294.8208370273. The cubic root of 1676561 is about 118.7972679786.

The spelling of 1676561 in words is "one million, six hundred seventy-six thousand, five hundred sixty-one".