8128994 has 8 divisors (see below), whose sum is σ = 12301740. Its totient is φ = 4028416.

The previous prime is 8128969. The next prime is 8129027. The reversal of 8128994 is 4998218.

It can be written as a sum of positive squares in 2 ways, for example, as 8094025 + 34969 = 2845^2 + 187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17759 + ... + 18210.

Almost surely, 2^8128994 is an apocalyptic number.

8128994 is a deficient number, since it is larger than the sum of its proper divisors (4172746).

8128994 is a wasteful number, since it uses less digits than its factorization.

8128994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36084.

The product of its digits is 41472, while the sum is 41.

The square root of 8128994 is about 2851.1390706172. The cubic root of 8128994 is about 201.0692236178.

The spelling of 8128994 in words is "eight million, one hundred twenty-eight thousand, nine hundred ninety-four".