7828872547 has 4 divisors (see below), whose sum is σ = 7832040760. Its totient is φ = 7825704336.

The previous prime is 7828872533. The next prime is 7828872563. The reversal of 7828872547 is 7452788287.

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 7828872547 - 2¹¹ = 7828870499 is a prime.

It is a super-2 number, since 2×7828872547² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7828872491 and 7828872500.

It is not an unprimeable number, because it can be changed into a prime (7828870547) 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, 1580397 + ... + 1585342.

It is an arithmetic number, because the mean of its divisors is an integer number (1958010190).

Almost surely, 2^7828872547 is an apocalyptic number.

7828872547 is a deficient number, since it is larger than the sum of its proper divisors (3168213).

7828872547 is a wasteful number, since it uses less digits than its factorization.

7828872547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168212.

The product of its digits is 14049280, while the sum is 58.

The square root of 7828872547 is about 88480.9162870729. The cubic root of 7828872547 is about 1985.6364703711.

The spelling of 7828872547 in words is "seven billion, eight hundred twenty-eight million, eight hundred seventy-two thousand, five hundred forty-seven".