8491736 has 16 divisors (see below), whose sum is σ = 17369640. Its totient is φ = 3859840.

The previous prime is 8491733. The next prime is 8491741. The reversal of 8491736 is 6371948.

8491736 = 721² + 722² + ... + 736².

It is a self number, because there is not a number n which added to its sum of digits gives 8491736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8491733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48161 + ... + 48336.

Almost surely, 2^8491736 is an apocalyptic number.

It is an amenable number.

8491736 is an abundant number, since it is smaller than the sum of its proper divisors (8877904).

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

8491736 is a wasteful number, since it uses less digits than its factorization.

8491736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96514 (or 96510 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 8491736 is about 2914.0583384689. The cubic root of 8491736 is about 204.0165948310.

The spelling of 8491736 in words is "eight million, four hundred ninety-one thousand, seven hundred thirty-six".