9708491 has 4 divisors (see below), whose sum is σ = 10455312. Its totient is φ = 8961672.

The previous prime is 9708451. The next prime is 9708493. The reversal of 9708491 is 1948079.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9708491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9708493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373391 + ... + 373416.

It is an arithmetic number, because the mean of its divisors is an integer number (2613828).

Almost surely, 2^9708491 is an apocalyptic number.

9708491 is a deficient number, since it is larger than the sum of its proper divisors (746821).

9708491 is a wasteful number, since it uses less digits than its factorization.

9708491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746820.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 9708491 is about 3115.8451501960. The cubic root of 9708491 is about 213.3293339637.

The spelling of 9708491 in words is "nine million, seven hundred eight thousand, four hundred ninety-one".