8491012 has 6 divisors (see below), whose sum is σ = 14859278. Its totient is φ = 4245504.

The previous prime is 8491001. The next prime is 8491033. The reversal of 8491012 is 2101948.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 1179396 = 2704^2 + 1086^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061373 + ... + 1061380.

Almost surely, 2^8491012 is an apocalyptic number.

It is an amenable number.

8491012 is a deficient number, since it is larger than the sum of its proper divisors (6368266).

8491012 is a wasteful number, since it uses less digits than its factorization.

8491012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122757 (or 2122755 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 8491012 is about 2913.9341104424. The cubic root of 8491012 is about 204.0107965579.

The spelling of 8491012 in words is "eight million, four hundred ninety-one thousand, twelve".