4028897 has 4 divisors (see below), whose sum is σ = 4044480. Its totient is φ = 4013316.

The previous prime is 4028891. The next prime is 4028917. The reversal of 4028897 is 7988204.

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 4028897 - 2⁶ = 4028833 is a prime.

It is a super-2 number, since 2×4028897² = 32464022073218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4028897.

It is not an unprimeable number, because it can be changed into a prime (4028891) 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, 7397 + ... + 7922.

It is an arithmetic number, because the mean of its divisors is an integer number (1011120).

Almost surely, 2^4028897 is an apocalyptic number.

It is an amenable number.

4028897 is a deficient number, since it is larger than the sum of its proper divisors (15583).

4028897 is a wasteful number, since it uses less digits than its factorization.

4028897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15582.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 4028897 is about 2007.2112494703. The cubic root of 4028897 is about 159.1214477627.

The spelling of 4028897 in words is "four million, twenty-eight thousand, eight hundred ninety-seven".