2728324247 has 16 divisors (see below), whose sum is σ = 3184379520. Its totient is φ = 2311221600.

The previous prime is 2728324223. The next prime is 2728324253. The reversal of 2728324247 is 7424238272.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2728324247 - 2¹² = 2728320151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728324847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94253 + ... + 119750.

It is an arithmetic number, because the mean of its divisors is an integer number (199023720).

Almost surely, 2^2728324247 is an apocalyptic number.

2728324247 is a deficient number, since it is larger than the sum of its proper divisors (456055273).

2728324247 is a wasteful number, since it uses less digits than its factorization.

2728324247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214094.

The product of its digits is 301056, while the sum is 41.

The square root of 2728324247 is about 52233.3633514060. The cubic root of 2728324247 is about 1397.3289628248.

The spelling of 2728324247 in words is "two billion, seven hundred twenty-eight million, three hundred twenty-four thousand, two hundred forty-seven".