894129680 has 20 divisors (see below), whose sum is σ = 2078851692. Its totient is φ = 357651840.

The previous prime is 894129667. The next prime is 894129697. The reversal of 894129680 is 86921498.

It can be written as a sum of positive squares in 2 ways, for example, as 233845264 + 660284416 = 15292^2 + 25696^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5588231 + ... + 5588390.

Almost surely, 2^894129680 is an apocalyptic number.

894129680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

894129680 is an abundant number, since it is smaller than the sum of its proper divisors (1184722012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

894129680 is a wasteful number, since it uses less digits than its factorization.

894129680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11176634 (or 11176628 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 894129680 is about 29902.0012708180. The cubic root of 894129680 is about 963.3856441490.

The spelling of 894129680 in words is "eight hundred ninety-four million, one hundred twenty-nine thousand, six hundred eighty".