450616987 has 2 divisors, whose sum is σ = 450616988. Its totient is φ = 450616986.

The previous prime is 450616981. The next prime is 450617029. The reversal of 450616987 is 789616054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450616987 is a prime.

It is not a weakly prime, because it can be changed into another prime (450616981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225308493 + 225308494.

It is an arithmetic number, because the mean of its divisors is an integer number (225308494).

Almost surely, 2^450616987 is an apocalyptic number.

450616987 is a deficient number, since it is larger than the sum of its proper divisors (1).

450616987 is an equidigital number, since it uses as much as digits as its factorization.

450616987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 450616987 is about 21227.7409773155. The cubic root of 450616987 is about 766.6594968664.

The spelling of 450616987 in words is "four hundred fifty million, six hundred sixteen thousand, nine hundred eighty-seven".