1327651389 has 6 divisors (see below), whose sum is σ = 1917718686. Its totient is φ = 885100920.

The previous prime is 1327651373. The next prime is 1327651393. The reversal of 1327651389 is 9831567231.

1327651389 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 703151289 + 624500100 = 26517^2 + 24990^2 .

It is not a de Polignac number, because 1327651389 - 2⁴ = 1327651373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327651309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73758402 + ... + 73758419.

It is an arithmetic number, because the mean of its divisors is an integer number (319619781).

Almost surely, 2^1327651389 is an apocalyptic number.

It is an amenable number.

1327651389 is a deficient number, since it is larger than the sum of its proper divisors (590067297).

1327651389 is a wasteful number, since it uses less digits than its factorization.

1327651389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147516827 (or 147516824 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1327651389 is about 36436.9508740784. The cubic root of 1327651389 is about 1099.0767429353.

The spelling of 1327651389 in words is "one billion, three hundred twenty-seven million, six hundred fifty-one thousand, three hundred eighty-nine".