1308893 has 4 divisors (see below), whose sum is σ = 1313340. Its totient is φ = 1304448.

The previous prime is 1308887. The next prime is 1308899. The reversal of 1308893 is 3988031.

1308893 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3988031 = 983 ⋅4057.

It is an interprime number because it is at equal distance from previous prime (1308887) and next prime (1308899).

It can be written as a sum of positive squares in 2 ways, for example, as 344569 + 964324 = 587^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 1308893 - 2⁶ = 1308829 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 (1308899) 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, 1748 + ... + 2381.

It is an arithmetic number, because the mean of its divisors is an integer number (328335).

2^1308893 is an apocalyptic number.

It is an amenable number.

1308893 is a deficient number, since it is larger than the sum of its proper divisors (4447).

1308893 is an equidigital number, since it uses as much as digits as its factorization.

1308893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1308893 is about 1144.0686168233. The cubic root of 1308893 is about 109.3875885375.

The spelling of 1308893 in words is "one million, three hundred eight thousand, eight hundred ninety-three".