1323947679 has 4 divisors (see below), whose sum is σ = 1765263576. Its totient is φ = 882631784.

The previous prime is 1323947657. The next prime is 1323947711. The reversal of 1323947679 is 9767493231.

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 1323947679 - 2⁸ = 1323947423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323947609) 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, 220657944 + ... + 220657949.

It is an arithmetic number, because the mean of its divisors is an integer number (441315894).

Almost surely, 2^1323947679 is an apocalyptic number.

1323947679 is a deficient number, since it is larger than the sum of its proper divisors (441315897).

1323947679 is an equidigital number, since it uses as much as digits as its factorization.

1323947679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441315896.

The product of its digits is 1714608, while the sum is 51.

The square root of 1323947679 is about 36386.0918346557. The cubic root of 1323947679 is about 1098.0537704133.

The spelling of 1323947679 in words is "one billion, three hundred twenty-three million, nine hundred forty-seven thousand, six hundred seventy-nine".