7728883 has 4 divisors (see below), whose sum is σ = 7855648. Its totient is φ = 7602120.

The previous prime is 7728871. The next prime is 7728907. The reversal of 7728883 is 3888277.

7728883 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7728883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7728803) 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, 63291 + ... + 63412.

It is an arithmetic number, because the mean of its divisors is an integer number (1963912).

Almost surely, 2^7728883 is an apocalyptic number.

7728883 is a deficient number, since it is larger than the sum of its proper divisors (126765).

7728883 is a wasteful number, since it uses less digits than its factorization.

7728883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126764.

The product of its digits is 150528, while the sum is 43.

The square root of 7728883 is about 2780.0868691464. The cubic root of 7728883 is about 197.7146776381.

Subtracting from 7728883 its reverse (3888277), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 7728883 in words is "seven million, seven hundred twenty-eight thousand, eight hundred eighty-three".