7828228287 has 32 divisors (see below), whose sum is σ = 12707040000. Its totient is φ = 4723621920.

The previous prime is 7828228267. The next prime is 7828228297.

7828228287 is a `hidden beast` number, since 7 + 8 + 282 + 282 + 87 = 666.

7828228287 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7828228287 - 2³¹ = 5680744639 is a prime.

It is a super-2 number, since 2×7828228287² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828228237) 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, 10464 + ... + 125562.

It is an arithmetic number, because the mean of its divisors is an integer number (397095000).

Almost surely, 2^7828228287 is an apocalyptic number.

7828228287 is a deficient number, since it is larger than the sum of its proper divisors (4878811713).

7828228287 is a wasteful number, since it uses less digits than its factorization.

7828228287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115348 (or 115342 counting only the distinct ones).

The product of its digits is 3211264, while the sum is 54.

The square root of 7828228287 is about 88477.2755401069. The cubic root of 7828228287 is about 1985.5820010020.

The spelling of 7828228287 in words is "seven billion, eight hundred twenty-eight million, two hundred twenty-eight thousand, two hundred eighty-seven".