4378613 has 4 divisors (see below), whose sum is σ = 4438668. Its totient is φ = 4318560.

The previous prime is 4378609. The next prime is 4378631. The reversal of 4378613 is 3168734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3168734 = 2 ⋅1584367.

It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 2845969 = 1238^2 + 1687^2 .

It is a cyclic number.

It is not a de Polignac number, because 4378613 - 2² = 4378609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4378613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378013) 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, 29918 + ... + 30063.

It is an arithmetic number, because the mean of its divisors is an integer number (1109667).

Almost surely, 2^4378613 is an apocalyptic number.

It is an amenable number.

4378613 is a deficient number, since it is larger than the sum of its proper divisors (60055).

4378613 is an equidigital number, since it uses as much as digits as its factorization.

4378613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60054.

The product of its digits is 12096, while the sum is 32.

The square root of 4378613 is about 2092.5135602906. The cubic root of 4378613 is about 163.5983254552.

The spelling of 4378613 in words is "four million, three hundred seventy-eight thousand, six hundred thirteen".