4358561 has 4 divisors (see below), whose sum is σ = 4440852. Its totient is φ = 4276272.

The previous prime is 4358539. The next prime is 4358593. The reversal of 4358561 is 1658534.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1658534 = 2 ⋅829267.

It can be written as a sum of positive squares in 2 ways, for example, as 3841600 + 516961 = 1960^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 4358561 - 2¹⁰ = 4357537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4358521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41066 + ... + 41171.

It is an arithmetic number, because the mean of its divisors is an integer number (1110213).

Almost surely, 2^4358561 is an apocalyptic number.

It is an amenable number.

4358561 is a deficient number, since it is larger than the sum of its proper divisors (82291).

4358561 is an equidigital number, since it uses as much as digits as its factorization.

4358561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82290.

The product of its digits is 14400, while the sum is 32.

The square root of 4358561 is about 2087.7166953397. The cubic root of 4358561 is about 163.3482086503.

The spelling of 4358561 in words is "four million, three hundred fifty-eight thousand, five hundred sixty-one".