4397241809 has 4 divisors (see below), whose sum is σ = 4397398116. Its totient is φ = 4397085504.

The previous prime is 4397241799. The next prime is 4397241829. The reversal of 4397241809 is 9081427934.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9081427934 = 2 ⋅4540713967.

It can be written as a sum of positive squares in 2 ways, for example, as 809231809 + 3588010000 = 28447^2 + 59900^2 .

It is a cyclic number.

It is not a de Polignac number, because 4397241809 - 2⁸ = 4397241553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4397241829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22964 + ... + 96549.

It is an arithmetic number, because the mean of its divisors is an integer number (1099349529).

Almost surely, 2^4397241809 is an apocalyptic number.

It is an amenable number.

4397241809 is a deficient number, since it is larger than the sum of its proper divisors (156307).

4397241809 is a wasteful number, since it uses less digits than its factorization.

4397241809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156306.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 4397241809 is about 66311.7019009466. The cubic root of 4397241809 is about 1638.3000689403.

The spelling of 4397241809 in words is "four billion, three hundred ninety-seven million, two hundred forty-one thousand, eight hundred nine".