457987 has 2 divisors, whose sum is σ = 457988. Its totient is φ = 457986.

The previous prime is 457981. The next prime is 458009. The reversal of 457987 is 789754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457987 - 2³ = 457979 is a prime.

It is not a weakly prime, because it can be changed into another prime (457981) 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, 228993 + 228994.

It is an arithmetic number, because the mean of its divisors is an integer number (228994).

2⁴⁵⁷⁹⁸⁷ is an apocalyptic number.

457987 is a deficient number, since it is larger than the sum of its proper divisors (1).

457987 is an equidigital number, since it uses as much as digits as its factorization.

457987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 40.

The square root of 457987 is about 676.7473679299. The cubic root of 457987 is about 77.0816584654.

It can be divided in two parts, 457 and 987, that added together give a square (1444 = 38²).

The spelling of 457987 in words is "four hundred fifty-seven thousand, nine hundred eighty-seven".