2728896287 has 32 divisors (see below), whose sum is σ = 3157382592. Its totient is φ = 2336292864.

The previous prime is 2728896283. The next prime is 2728896307. The reversal of 2728896287 is 7826988272.

It is not a de Polignac number, because 2728896287 - 2² = 2728896283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728896283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5843228 + ... + 5843694.

It is an arithmetic number, because the mean of its divisors is an integer number (98668206).

Almost surely, 2^2728896287 is an apocalyptic number.

2728896287 is the 42653-rd pentagonal number.

2728896287 is a deficient number, since it is larger than the sum of its proper divisors (428486305).

2728896287 is a wasteful number, since it uses less digits than its factorization.

2728896287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its digits is 10838016, while the sum is 59.

The square root of 2728896287 is about 52238.8388749214. The cubic root of 2728896287 is about 1397.4266139994.

The spelling of 2728896287 in words is "two billion, seven hundred twenty-eight million, eight hundred ninety-six thousand, two hundred eighty-seven".