1677349 has 2 divisors, whose sum is σ = 1677350. Its totient is φ = 1677348.

The previous prime is 1677343. The next prime is 1677353. The reversal of 1677349 is 9437761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 324 = 1295^2 + 18^2 .

It is an emirp because it is prime and its reverse (9437761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1677349 - 2⁹ = 1676837 is a prime.

1677349 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1677343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838674 + 838675.

It is an arithmetic number, because the mean of its divisors is an integer number (838675).

2^1677349 is an apocalyptic number.

It is an amenable number.

1677349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1677349 is an equidigital number, since it uses as much as digits as its factorization.

1677349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 1677349 is about 1295.1250904835. The cubic root of 1677349 is about 118.8158770211.

The spelling of 1677349 in words is "one million, six hundred seventy-seven thousand, three hundred forty-nine".