1329907 has 2 divisors, whose sum is σ = 1329908. Its totient is φ = 1329906.

The previous prime is 1329899. The next prime is 1329941. The reversal of 1329907 is 7099231.

It is a weak prime.

It is an emirp because it is prime and its reverse (7099231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1329907 - 2³ = 1329899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1329407) 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, 664953 + 664954.

It is an arithmetic number, because the mean of its divisors is an integer number (664954).

2^1329907 is an apocalyptic number.

1329907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329907 is an equidigital number, since it uses as much as digits as its factorization.

1329907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1329907 is about 1153.2159381486. The cubic root of 1329907 is about 109.9698815614.

It can be divided in two parts, 132990 and 7, that multiplied together give a triangular number (930930 = T₁₃₆₄).

The spelling of 1329907 in words is "one million, three hundred twenty-nine thousand, nine hundred seven".