1327775897 has 16 divisors (see below), whose sum is σ = 1556485632. Its totient is φ = 1109034240.

The previous prime is 1327775893. The next prime is 1327775923. The reversal of 1327775897 is 7985777231.

It is a cyclic number.

It is not a de Polignac number, because 1327775897 - 2² = 1327775893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1327775893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67997 + ... + 85317.

It is an arithmetic number, because the mean of its divisors is an integer number (97280352).

Almost surely, 2^1327775897 is an apocalyptic number.

It is an amenable number.

1327775897 is a deficient number, since it is larger than the sum of its proper divisors (228709735).

1327775897 is a wasteful number, since it uses less digits than its factorization.

1327775897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17608.

The product of its digits is 5186160, while the sum is 56.

The square root of 1327775897 is about 36438.6593743513. The cubic root of 1327775897 is about 1099.1110992356. Note that the first 3 decimals are identical.

The spelling of 1327775897 in words is "one billion, three hundred twenty-seven million, seven hundred seventy-five thousand, eight hundred ninety-seven".