1326667 has 4 divisors (see below), whose sum is σ = 1346536. Its totient is φ = 1306800.

The previous prime is 1326659. The next prime is 1326673. The reversal of 1326667 is 7666231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7666231 = 269 ⋅28499.

It is a cyclic number.

It is not a de Polignac number, because 1326667 - 2³ = 1326659 is a prime.

It is a Duffinian number.

1326667 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1326607) 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 in 3 ways as a sum of consecutive naturals, for example, 9834 + ... + 9967.

It is an arithmetic number, because the mean of its divisors is an integer number (336634).

2^1326667 is an apocalyptic number.

1326667 is a deficient number, since it is larger than the sum of its proper divisors (19869).

1326667 is an equidigital number, since it uses as much as digits as its factorization.

1326667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19868.

The product of its digits is 9072, while the sum is 31.

The square root of 1326667 is about 1151.8103142445. The cubic root of 1326667 is about 109.8805038437.

The spelling of 1326667 in words is "one million, three hundred twenty-six thousand, six hundred sixty-seven".