894872439 has 12 divisors (see below), whose sum is σ = 1296009000. Its totient is φ = 595005264.

The previous prime is 894872389. The next prime is 894872449. The reversal of 894872439 is 934278498.

It is not a de Polignac number, because 894872439 - 2⁹ = 894871927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894872449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127764 + ... + 134585.

It is an arithmetic number, because the mean of its divisors is an integer number (108000750).

Almost surely, 2^894872439 is an apocalyptic number.

894872439 is a deficient number, since it is larger than the sum of its proper divisors (401136561).

894872439 is a wasteful number, since it uses less digits than its factorization.

894872439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262734 (or 262731 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 894872439 is about 29914.4185803435. The cubic root of 894872439 is about 963.6523337669.

The spelling of 894872439 in words is "eight hundred ninety-four million, eight hundred seventy-two thousand, four hundred thirty-nine".