8128830 has 16 divisors (see below), whose sum is σ = 19509264. Its totient is φ = 2167680.

The previous prime is 8128829. The next prime is 8128871. The reversal of 8128830 is 388218.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 270961 = 8128830 / (8 + 1 + 2 + 8 + 8 + 3 + 0).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135451 + ... + 135510.

It is an arithmetic number, because the mean of its divisors is an integer number (1219329).

Almost surely, 2^8128830 is an apocalyptic number.

8128830 is an abundant number, since it is smaller than the sum of its proper divisors (11380434).

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

8128830 is a wasteful number, since it uses less digits than its factorization.

8128830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270971.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 8128830 is about 2851.1103100371. The cubic root of 8128830 is about 201.0678714384.

It can be divided in two parts, 81288 and 30, that added together give a palindrome (81318).

The spelling of 8128830 in words is "eight million, one hundred twenty-eight thousand, eight hundred thirty".