1328005699 has 2 divisors, whose sum is σ = 1328005700. Its totient is φ = 1328005698.

The previous prime is 1328005691. The next prime is 1328005733. The reversal of 1328005699 is 9965008231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1328005699 - 2³ = 1328005691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328005691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664002849 + 664002850.

It is an arithmetic number, because the mean of its divisors is an integer number (664002850).

Almost surely, 2^1328005699 is an apocalyptic number.

1328005699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328005699 is an equidigital number, since it uses as much as digits as its factorization.

1328005699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1328005699 is about 36441.8125098080. The cubic root of 1328005699 is about 1099.1745043527.

The spelling of 1328005699 in words is "one billion, three hundred twenty-eight million, five thousand, six hundred ninety-nine".