2028777 has 4 divisors (see below), whose sum is σ = 2705040. Its totient is φ = 1352516.

The previous prime is 2028773. The next prime is 2028779. The reversal of 2028777 is 7778202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2028777 - 2² = 2028773 is a prime.

It is a super-2 number, since 2×2028777² = 8231872231458, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2028773) 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, 338127 + ... + 338132.

It is an arithmetic number, because the mean of its divisors is an integer number (676260).

2^2028777 is an apocalyptic number.

It is an amenable number.

2028777 is a deficient number, since it is larger than the sum of its proper divisors (676263).

2028777 is an equidigital number, since it uses as much as digits as its factorization.

2028777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676262.

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 2028777 is about 1424.3514313539. The cubic root of 2028777 is about 126.5935088476.

The spelling of 2028777 in words is "two million, twenty-eight thousand, seven hundred seventy-seven".