451897 has 2 divisors, whose sum is σ = 451898. Its totient is φ = 451896.

The previous prime is 451879. The next prime is 451901. The reversal of 451897 is 798154.

It is a happy number.

Together with previous prime (451879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346921 + 104976 = 589^2 + 324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451897 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (451837) 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 as a sum of consecutive naturals, namely, 225948 + 225949.

It is an arithmetic number, because the mean of its divisors is an integer number (225949).

2⁴⁵¹⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

451897 is a deficient number, since it is larger than the sum of its proper divisors (1).

451897 is an equidigital number, since it uses as much as digits as its factorization.

451897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 451897 is about 672.2328465643. The cubic root of 451897 is about 76.7384729476.

The spelling of 451897 in words is "four hundred fifty-one thousand, eight hundred ninety-seven".