4393145 has 4 divisors (see below), whose sum is σ = 5271780. Its totient is φ = 3514512.

The previous prime is 4393139. The next prime is 4393153. The reversal of 4393145 is 5413934.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5413934 = 2 ⋅2706967.

It can be written as a sum of positive squares in 2 ways, for example, as 2399401 + 1993744 = 1549^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 4393145 - 2²² = 198841 is a prime.

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, 439310 + ... + 439319.

It is an arithmetic number, because the mean of its divisors is an integer number (1317945).

Almost surely, 2^4393145 is an apocalyptic number.

It is an amenable number.

4393145 is a deficient number, since it is larger than the sum of its proper divisors (878635).

4393145 is an equidigital number, since it uses as much as digits as its factorization.

4393145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878634.

The product of its digits is 6480, while the sum is 29.

The square root of 4393145 is about 2095.9830629087. The cubic root of 4393145 is about 163.7791122025.

The spelling of 4393145 in words is "four million, three hundred ninety-three thousand, one hundred forty-five".