454549987 has 2 divisors, whose sum is σ = 454549988. Its totient is φ = 454549986.

The previous prime is 454549919. The next prime is 454550027. The reversal of 454549987 is 789945454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 454549987 - 2¹¹ = 454547939 is a prime.

It is not a weakly prime, because it can be changed into another prime (454549387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227274993 + 227274994.

It is an arithmetic number, because the mean of its divisors is an integer number (227274994).

Almost surely, 2^454549987 is an apocalyptic number.

454549987 is a deficient number, since it is larger than the sum of its proper divisors (1).

454549987 is an equidigital number, since it uses as much as digits as its factorization.

454549987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 55.

The square root of 454549987 is about 21320.1779307772. The cubic root of 454549987 is about 768.8835154267.

The spelling of 454549987 in words is "four hundred fifty-four million, five hundred forty-nine thousand, nine hundred eighty-seven".