1326067887 has 4 divisors (see below), whose sum is σ = 1768090520. Its totient is φ = 884045256.

The previous prime is 1326067877. The next prime is 1326067903. The reversal of 1326067887 is 7887606231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1326067887 - 2¹⁸ = 1325805743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326067877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221011312 + ... + 221011317.

It is an arithmetic number, because the mean of its divisors is an integer number (442022630).

Almost surely, 2^1326067887 is an apocalyptic number.

1326067887 is a deficient number, since it is larger than the sum of its proper divisors (442022633).

1326067887 is an equidigital number, since it uses as much as digits as its factorization.

1326067887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442022632.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 1326067887 is about 36415.2150481087. The cubic root of 1326067887 is about 1098.6396094577.

The spelling of 1326067887 in words is "one billion, three hundred twenty-six million, sixty-seven thousand, eight hundred eighty-seven".