1356697 has 2 divisors, whose sum is σ = 1356698. Its totient is φ = 1356696.

The previous prime is 1356689. The next prime is 1356709. The reversal of 1356697 is 7966531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1308736 + 47961 = 1144^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356697 - 2³ = 1356689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1356647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678348 + 678349.

It is an arithmetic number, because the mean of its divisors is an integer number (678349).

2^1356697 is an apocalyptic number.

It is an amenable number.

1356697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356697 is an equidigital number, since it uses as much as digits as its factorization.

1356697 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 1356697 is about 1164.7733685142. The cubic root of 1356697 is about 110.7033988403.

The spelling of 1356697 in words is "one million, three hundred fifty-six thousand, six hundred ninety-seven".