1326772943 has 4 divisors (see below), whose sum is σ = 1349260680. Its totient is φ = 1304285208.

The previous prime is 1326772921. The next prime is 1326772949. The reversal of 1326772943 is 3492776231.

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

It is a cyclic number.

It is not a de Polignac number, because 1326772943 - 2⁶ = 1326772879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1326772894 and 1326772903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326772949) 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, 11243780 + ... + 11243897.

It is an arithmetic number, because the mean of its divisors is an integer number (337315170).

Almost surely, 2^1326772943 is an apocalyptic number.

1326772943 is a deficient number, since it is larger than the sum of its proper divisors (22487737).

1326772943 is an equidigital number, since it uses as much as digits as its factorization.

1326772943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22487736.

The product of its digits is 381024, while the sum is 44.

The square root of 1326772943 is about 36424.8945502935. The cubic root of 1326772943 is about 1098.8342865714.

The spelling of 1326772943 in words is "one billion, three hundred twenty-six million, seven hundred seventy-two thousand, nine hundred forty-three".