9486721 has 4 divisors (see below), whose sum is σ = 9499072. Its totient is φ = 9474372.

The previous prime is 9486707. The next prime is 9486733. The reversal of 9486721 is 1276849.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9486721 - 2⁷ = 9486593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9486761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4941 + ... + 6586.

It is an arithmetic number, because the mean of its divisors is an integer number (2374768).

Almost surely, 2^9486721 is an apocalyptic number.

It is an amenable number.

9486721 is a deficient number, since it is larger than the sum of its proper divisors (12351).

9486721 is a wasteful number, since it uses less digits than its factorization.

9486721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350.

The product of its digits is 24192, while the sum is 37.

The square root of 9486721 is about 3080.0521099488. The cubic root of 9486721 is about 211.6924533722.

The spelling of 9486721 in words is "nine million, four hundred eighty-six thousand, seven hundred twenty-one".