1206769 has 2 divisors, whose sum is σ = 1206770. Its totient is φ = 1206768.

The previous prime is 1206767. The next prime is 1206773. The reversal of 1206769 is 9676021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1199025 + 7744 = 1095^2 + 88^2 .

It is an emirp because it is prime and its reverse (9676021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1206769 - 2¹ = 1206767 is a prime.

It is a super-2 number, since 2×1206769² = 2912582838722, which contains 22 as substring.

Together with 1206767, it forms a pair of twin primes.

1206769 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1206769.

It is not a weakly prime, because it can be changed into another prime (1206761) 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, 603384 + 603385.

It is an arithmetic number, because the mean of its divisors is an integer number (603385).

2^1206769 is an apocalyptic number.

It is an amenable number.

1206769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206769 is an equidigital number, since it uses as much as digits as its factorization.

1206769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1206769 is about 1098.5303819194. The cubic root of 1206769 is about 106.4652917235.

It can be divided in two parts, 120 and 6769, that added together give a square (6889 = 83²).

The spelling of 1206769 in words is "one million, two hundred six thousand, seven hundred sixty-nine".