7828899 has 16 divisors (see below), whose sum is σ = 11311104. Its totient is φ = 4788000.

The previous prime is 7828879. The next prime is 7828913. The reversal of 7828899 is 9988287.

It is a de Polignac number, because none of the positive numbers 2^k-7828899 is a prime.

It is a super-2 number, since 2×7828899² = 122583319104402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7828879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6924 + ... + 7974.

It is an arithmetic number, because the mean of its divisors is an integer number (706944).

Almost surely, 2^7828899 is an apocalyptic number.

7828899 is a deficient number, since it is larger than the sum of its proper divisors (3482205).

7828899 is a wasteful number, since it uses less digits than its factorization.

7828899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258.

The product of its digits is 580608, while the sum is 51.

The square root of 7828899 is about 2798.0169763602. The cubic root of 7828899 is about 198.5638706793.

It can be divided in two parts, 78288 and 99, that added together give a palindrome (78387).

The spelling of 7828899 in words is "seven million, eight hundred twenty-eight thousand, eight hundred ninety-nine".