10028779 has 4 divisors (see below), whose sum is σ = 10352320. Its totient is φ = 9705240.

The previous prime is 10028773. The next prime is 10028803. The reversal of 10028779 is 97782001.

10028779 is digitally balanced in base 2, 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 is a cyclic number.

It is not a de Polignac number, because 10028779 - 2³ = 10028771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10028771) 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, 161724 + ... + 161785.

It is an arithmetic number, because the mean of its divisors is an integer number (2588080).

Almost surely, 2^10028779 is an apocalyptic number.

10028779 is a deficient number, since it is larger than the sum of its proper divisors (323541).

10028779 is an equidigital number, since it uses as much as digits as its factorization.

10028779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323540.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 10028779 is about 3166.8247504401. The cubic root of 10028779 is about 215.6499459761.

The spelling of 10028779 in words is "ten million, twenty-eight thousand, seven hundred seventy-nine".