1349669 has 2 divisors, whose sum is σ = 1349670. Its totient is φ = 1349668.

The previous prime is 1349651. The next prime is 1349671. The reversal of 1349669 is 9669431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1181569 + 168100 = 1087^2 + 410^2 .

It is an emirp because it is prime and its reverse (9669431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1349669 is a prime.

It is a super-2 number, since 2×1349669² = 3643212819122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1349671, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342669) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674834 + 674835.

It is an arithmetic number, because the mean of its divisors is an integer number (674835).

2^1349669 is an apocalyptic number.

It is an amenable number.

1349669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349669 is an equidigital number, since it uses as much as digits as its factorization.

1349669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 38.

The square root of 1349669 is about 1161.7525554093. The cubic root of 1349669 is about 110.5119115214.

The spelling of 1349669 in words is "one million, three hundred forty-nine thousand, six hundred sixty-nine".