1327390093 has 4 divisors (see below), whose sum is σ = 1327491868. Its totient is φ = 1327288320.

The previous prime is 1327390087. The next prime is 1327390109. The reversal of 1327390093 is 3900937231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3900937231 = 103 ⋅37873177.

It can be written as a sum of positive squares in 2 ways, for example, as 977625289 + 349764804 = 31267^2 + 18702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1327390093 - 2²⁵ = 1293835661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327390003) 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, 27846 + ... + 58567.

It is an arithmetic number, because the mean of its divisors is an integer number (331872967).

Almost surely, 2^1327390093 is an apocalyptic number.

It is an amenable number.

1327390093 is a deficient number, since it is larger than the sum of its proper divisors (101775).

1327390093 is an equidigital number, since it uses as much as digits as its factorization.

1327390093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101774.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 1327390093 is about 36433.3651067260. The cubic root of 1327390093 is about 1099.0046348499.

The spelling of 1327390093 in words is "one billion, three hundred twenty-seven million, three hundred ninety thousand, ninety-three".