2728858487 has 4 divisors (see below), whose sum is σ = 2740570560. Its totient is φ = 2717146416.

The previous prime is 2728858471. The next prime is 2728858507. The reversal of 2728858487 is 7848588272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2728858487 - 2⁴ = 2728858471 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 (2728858427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5855687 + ... + 5856152.

It is an arithmetic number, because the mean of its divisors is an integer number (685142640).

Almost surely, 2^2728858487 is an apocalyptic number.

2728858487 is a deficient number, since it is larger than the sum of its proper divisors (11712073).

2728858487 is a wasteful number, since it uses less digits than its factorization.

2728858487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11712072.

The product of its digits is 16056320, while the sum is 59.

The square root of 2728858487 is about 52238.4770738964. The cubic root of 2728858487 is about 1397.4201616998.

The spelling of 2728858487 in words is "two billion, seven hundred twenty-eight million, eight hundred fifty-eight thousand, four hundred eighty-seven".