894847477 has 2 divisors, whose sum is σ = 894847478. Its totient is φ = 894847476.

The previous prime is 894847469. The next prime is 894847543. The reversal of 894847477 is 774748498.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 894847396 + 81 = 29914^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 894847477 - 2³ = 894847469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (894847777) 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, 447423738 + 447423739.

It is an arithmetic number, because the mean of its divisors is an integer number (447423739).

Almost surely, 2^894847477 is an apocalyptic number.

It is an amenable number.

894847477 is a deficient number, since it is larger than the sum of its proper divisors (1).

894847477 is an equidigital number, since it uses as much as digits as its factorization.

894847477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12644352, while the sum is 58.

The square root of 894847477 is about 29914.0013538811. The cubic root of 894847477 is about 963.6433734905.

The spelling of 894847477 in words is "eight hundred ninety-four million, eight hundred forty-seven thousand, four hundred seventy-seven".