1328709467 has 4 divisors (see below), whose sum is σ = 1329015240. Its totient is φ = 1328403696.

The previous prime is 1328709461. The next prime is 1328709491. The reversal of 1328709467 is 7649078231.

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 1328709467 - 2⁴ = 1328709451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328709461) 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, 146273 + ... + 155090.

It is an arithmetic number, because the mean of its divisors is an integer number (332253810).

Almost surely, 2^1328709467 is an apocalyptic number.

1328709467 is a deficient number, since it is larger than the sum of its proper divisors (305773).

1328709467 is an equidigital number, since it uses as much as digits as its factorization.

1328709467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305772.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 1328709467 is about 36451.4672818530. The cubic root of 1328709467 is about 1099.3686368616.

The spelling of 1328709467 in words is "one billion, three hundred twenty-eight million, seven hundred nine thousand, four hundred sixty-seven".