8028913 has 4 divisors (see below), whose sum is σ = 8501220. Its totient is φ = 7556608.

The previous prime is 8028899. The next prime is 8028919. The reversal of 8028913 is 3198208.

8028913 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 can be written as a sum of positive squares in 2 ways, for example, as 5817744 + 2211169 = 2412^2 + 1487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8028913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8028919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236128 + ... + 236161.

It is an arithmetic number, because the mean of its divisors is an integer number (2125305).

Almost surely, 2^8028913 is an apocalyptic number.

It is an amenable number.

8028913 is a deficient number, since it is larger than the sum of its proper divisors (472307).

8028913 is a wasteful number, since it uses less digits than its factorization.

8028913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472306.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 8028913 is about 2833.5336595848. The cubic root of 8028913 is about 200.2406519836.

The spelling of 8028913 in words is "eight million, twenty-eight thousand, nine hundred thirteen".