894129849 has 6 divisors (see below), whose sum is σ = 1291520906. Its totient is φ = 596086560.

The previous prime is 894129839. The next prime is 894129877. The reversal of 894129849 is 948921498.

It can be written as a sum of positive squares in only one way, i.e., 829440000 + 64689849 = 28800^2 + 8043^2 .

It is a de Polignac number, because none of the positive numbers 2^k-894129849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 894129795 and 894129804.

It is not an unprimeable number, because it can be changed into a prime (894129809) 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 in 5 ways as a sum of consecutive naturals, for example, 49673872 + ... + 49673889.

Almost surely, 2^894129849 is an apocalyptic number.

It is an amenable number.

894129849 is a deficient number, since it is larger than the sum of its proper divisors (397391057).

894129849 is a wasteful number, since it uses less digits than its factorization.

894129849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99347767 (or 99347764 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 894129849 is about 29902.0040967157. The cubic root of 894129849 is about 963.3857048457.

The spelling of 894129849 in words is "eight hundred ninety-four million, one hundred twenty-nine thousand, eight hundred forty-nine".