994481287 has 2 divisors, whose sum is σ = 994481288. Its totient is φ = 994481286.

The previous prime is 994481273. The next prime is 994481297. The reversal of 994481287 is 782184499.

It is a happy number.

994481287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (782184499) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994481287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (994481237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497240643 + 497240644.

It is an arithmetic number, because the mean of its divisors is an integer number (497240644).

Almost surely, 2^994481287 is an apocalyptic number.

994481287 is a deficient number, since it is larger than the sum of its proper divisors (1).

994481287 is an equidigital number, since it uses as much as digits as its factorization.

994481287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 52.

The square root of 994481287 is about 31535.3973655002. The cubic root of 994481287 is about 998.1570345650.

The spelling of 994481287 in words is "nine hundred ninety-four million, four hundred eighty-one thousand, two hundred eighty-seven".