1327399801 has 16 divisors (see below), whose sum is σ = 1635225984. Its totient is φ = 1049284224.

The previous prime is 1327399781. The next prime is 1327399837. The reversal of 1327399801 is 1089937231.

It is a cyclic number.

It is not a de Polignac number, because 1327399801 - 2⁷ = 1327399673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1327399891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102450 + ... + 114676.

It is an arithmetic number, because the mean of its divisors is an integer number (102201624).

Almost surely, 2^1327399801 is an apocalyptic number.

It is an amenable number.

1327399801 is a deficient number, since it is larger than the sum of its proper divisors (307826183).

1327399801 is a wasteful number, since it uses less digits than its factorization.

1327399801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 1327399801 is about 36433.4983360094. The cubic root of 1327399801 is about 1099.0073140701.

The spelling of 1327399801 in words is "one billion, three hundred twenty-seven million, three hundred ninety-nine thousand, eight hundred one".