2728036013 has 4 divisors (see below), whose sum is σ = 2728158528. Its totient is φ = 2727913500.

The previous prime is 2728036007. The next prime is 2728036021. The reversal of 2728036013 is 3106308272.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2728036013 - 2⁸ = 2728035757 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 (2728036043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17381 + ... + 75882.

It is an arithmetic number, because the mean of its divisors is an integer number (682039632).

Almost surely, 2^2728036013 is an apocalyptic number.

It is an amenable number.

2728036013 is a deficient number, since it is larger than the sum of its proper divisors (122515).

2728036013 is an equidigital number, since it uses as much as digits as its factorization.

2728036013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122514.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2728036013 is about 52230.6041799250. The cubic root of 2728036013 is about 1397.2797541209.

The spelling of 2728036013 in words is "two billion, seven hundred twenty-eight million, thirty-six thousand, thirteen".