4378313 has 4 divisors (see below), whose sum is σ = 4386948. Its totient is φ = 4369680.

The previous prime is 4378307. The next prime is 4378327. The reversal of 4378313 is 3138734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3138734 = 2 ⋅1569367.

It can be written as a sum of positive squares in 2 ways, for example, as 1827904 + 2550409 = 1352^2 + 1597^2 .

It is a cyclic number.

It is not a de Polignac number, because 4378313 - 2⁸ = 4378057 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 3⁵ + 7² + 8 + 3⁸ + 1 + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4378373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506 + ... + 4587.

It is an arithmetic number, because the mean of its divisors is an integer number (1096737).

Almost surely, 2^4378313 is an apocalyptic number.

It is an amenable number.

4378313 is a deficient number, since it is larger than the sum of its proper divisors (8635).

4378313 is an equidigital number, since it uses as much as digits as its factorization.

4378313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634.

The product of its digits is 6048, while the sum is 29.

The square root of 4378313 is about 2092.4418749394. The cubic root of 4378313 is about 163.5945890651.

The spelling of 4378313 in words is "four million, three hundred seventy-eight thousand, three hundred thirteen".