9616491 has 6 divisors (see below), whose sum is σ = 13890500. Its totient is φ = 6410988.

The previous prime is 9616471. The next prime is 9616493. The reversal of 9616491 is 1946169.

9616491 is a `hidden beast` number, since 9 + 6 + 1 + 649 + 1 = 666.

It is not a de Polignac number, because 9616491 - 2⁵ = 9616459 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9616493) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 534241 + ... + 534258.

Almost surely, 2^9616491 is an apocalyptic number.

9616491 is a deficient number, since it is larger than the sum of its proper divisors (4274009).

9616491 is a wasteful number, since it uses less digits than its factorization.

9616491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068505 (or 1068502 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 9616491 is about 3101.0467587574. The cubic root of 9616491 is about 212.6533407639.

The spelling of 9616491 in words is "nine million, six hundred sixteen thousand, four hundred ninety-one".