4287897 has 10 divisors (see below), whose sum is σ = 6405498. Its totient is φ = 2858544.

The previous prime is 4287887. The next prime is 4287919. The reversal of 4287897 is 7987824.

It can be written as a sum of positive squares in only one way, i.e., 3956121 + 331776 = 1989^2 + 576^2 .

It is not a de Polignac number, because 4287897 - 2⁷ = 4287769 is a prime.

It is an Ulam number.

4287897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4287847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26388 + ... + 26549.

Almost surely, 2^4287897 is an apocalyptic number.

It is an amenable number.

4287897 is a deficient number, since it is larger than the sum of its proper divisors (2117601).

4287897 is an equidigital number, since it uses as much as digits as its factorization.

4287897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52949 (or 52940 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 4287897 is about 2070.7237865056. The cubic root of 4287897 is about 162.4606232007.

It can be divided in two parts, 4287 and 897, that added together give a square (5184 = 72²).

The spelling of 4287897 in words is "four million, two hundred eighty-seven thousand, eight hundred ninety-seven".