4197302809 has 6 divisors (see below), whose sum is σ = 4882576794. Its totient is φ = 3597688080.

The previous prime is 4197302789. The next prime is 4197302861. The reversal of 4197302809 is 9082037914.

4197302809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2851880409 + 1345422400 = 53403^2 + 36680^2 .

It is not a de Polignac number, because 4197302809 - 2¹⁵ = 4197270041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4197302909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42829572 + ... + 42829669.

It is an arithmetic number, because the mean of its divisors is an integer number (813762799).

Almost surely, 2^4197302809 is an apocalyptic number.

4197302809 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4197302809 is a deficient number, since it is larger than the sum of its proper divisors (685273985).

4197302809 is an equidigital number, since it uses as much as digits as its factorization.

4197302809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85659255 (or 85659248 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 4197302809 is about 64786.5943617968. The cubic root of 4197302809 is about 1613.0831970485.

The spelling of 4197302809 in words is "four billion, one hundred ninety-seven million, three hundred two thousand, eight hundred nine".