894904289 has 2 divisors, whose sum is σ = 894904290. Its totient is φ = 894904288.

The previous prime is 894904267. The next prime is 894904391. The reversal of 894904289 is 982409498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865830625 + 29073664 = 29425^2 + 5392^2 .

It is a cyclic number.

It is not a de Polignac number, because 894904289 - 2²⁴ = 878127073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 894904289.

It is not a weakly prime, because it can be changed into another prime (894904229) 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, 447452144 + 447452145.

It is an arithmetic number, because the mean of its divisors is an integer number (447452145).

Almost surely, 2^894904289 is an apocalyptic number.

It is an amenable number.

894904289 is a deficient number, since it is larger than the sum of its proper divisors (1).

894904289 is an equidigital number, since it uses as much as digits as its factorization.

894904289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 894904289 is about 29914.9509275880. The cubic root of 894904289 is about 963.6637662949.

The spelling of 894904289 in words is "eight hundred ninety-four million, nine hundred four thousand, two hundred eighty-nine".