2028897 has 12 divisors (see below), whose sum is σ = 3156244. Its totient is φ = 1248480.

The previous prime is 2028881. The next prime is 2028907. The reversal of 2028897 is 7988202.

It can be written as a sum of positive squares in 2 ways, for example, as 1089936 + 938961 = 1044^2 + 969^2 .

It is not a de Polignac number, because 2028897 - 2⁴ = 2028881 is a prime.

2028897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2028847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8554 + ... + 8787.

2^2028897 is an apocalyptic number.

It is an amenable number.

2028897 is a deficient number, since it is larger than the sum of its proper divisors (1127347).

2028897 is a wasteful number, since it uses less digits than its factorization.

2028897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17360 (or 17357 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2028897 is about 1424.3935551665. The cubic root of 2028897 is about 126.5960047555.

The spelling of 2028897 in words is "two million, twenty-eight thousand, eight hundred ninety-seven".