4209284641 has 3 divisors (see below), whose sum is σ = 4209349521. Its totient is φ = 4209219762.

The previous prime is 4209284627. The next prime is 4209284689. The reversal of 4209284641 is 1464829024.

The square root of 4209284641 is 64879.

It is a perfect power (a square), and thus also a powerful number.

4209284641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 4209284641 - 2¹¹ = 4209282593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4209284594 and 4209284603.

It is not an unprimeable number, because it can be changed into a prime (4209284341) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 32440 + ... + 97318.

It is an arithmetic number, because the mean of its divisors is an integer number (1403116507).

Almost surely, 2^4209284641 is an apocalyptic number.

4209284641 is the 64879-th square number.

4209284641 is the 32440-th centered octagonal number.

It is an amenable number.

4209284641 is a deficient number, since it is larger than the sum of its proper divisors (64880).

4209284641 is an frugal number, since it uses more digits than its factorization.

4209284641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129758 (or 64879 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The cubic root of 4209284641 is about 1614.6166683110.

The spelling of 4209284641 in words is "four billion, two hundred nine million, two hundred eighty-four thousand, six hundred forty-one".