7677828 has 42 divisors (see below), whose sum is σ = 20152734. Its totient is φ = 2558304.

The previous prime is 7677823. The next prime is 7677877. The reversal of 7677828 is 8287767.

It can be written as a sum of positive squares in only one way, i.e., 5391684 + 2286144 = 2322^2 + 1512^2 .

It is not an unprimeable number, because it can be changed into a prime (7677823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1600 + ... + 4232.

It is an arithmetic number, because the mean of its divisors is an integer number (479827).

Almost surely, 2^7677828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7677828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10076367).

7677828 is an abundant number, since it is smaller than the sum of its proper divisors (12474906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7677828 is a wasteful number, since it uses less digits than its factorization.

7677828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655 (or 2638 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 7677828 is about 2770.8893879042. The cubic root of 7677828 is about 197.2783648434.

The spelling of 7677828 in words is "seven million, six hundred seventy-seven thousand, eight hundred twenty-eight".