4251897 has 12 divisors (see below), whose sum is σ = 6614244. Its totient is φ = 2616480.

The previous prime is 4251889. The next prime is 4251917. The reversal of 4251897 is 7981524.

It can be written as a sum of positive squares in 2 ways, for example, as 1929321 + 2322576 = 1389^2 + 1524^2 .

It is not a de Polignac number, because 4251897 - 2³ = 4251889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4251817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18054 + ... + 18287.

It is an arithmetic number, because the mean of its divisors is an integer number (551187).

Almost surely, 2^4251897 is an apocalyptic number.

It is an amenable number.

4251897 is a deficient number, since it is larger than the sum of its proper divisors (2362347).

4251897 is a wasteful number, since it uses less digits than its factorization.

4251897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36360 (or 36357 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 4251897 is about 2062.0128515603. The cubic root of 4251897 is about 162.0046866500.

The spelling of 4251897 in words is "four million, two hundred fifty-one thousand, eight hundred ninety-seven".