4379645 has 4 divisors (see below), whose sum is σ = 5255580. Its totient is φ = 3503712.

The previous prime is 4379623. The next prime is 4379677. The reversal of 4379645 is 5469734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5469734 = 2 ⋅2734867.

It can be written as a sum of positive squares in 2 ways, for example, as 822649 + 3556996 = 907^2 + 1886^2 .

It is a cyclic number.

It is not a de Polignac number, because 4379645 - 2⁶ = 4379581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4379599 and 4379608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437960 + ... + 437969.

It is an arithmetic number, because the mean of its divisors is an integer number (1313895).

Almost surely, 2^4379645 is an apocalyptic number.

It is an amenable number.

4379645 is a deficient number, since it is larger than the sum of its proper divisors (875935).

4379645 is an equidigital number, since it uses as much as digits as its factorization.

4379645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875934.

The product of its digits is 90720, while the sum is 38.

The square root of 4379645 is about 2092.7601391464. The cubic root of 4379645 is about 163.6111773339.

The spelling of 4379645 in words is "four million, three hundred seventy-nine thousand, six hundred forty-five".