9721254 has 8 divisors (see below), whose sum is σ = 19442520. Its totient is φ = 3240416.

The previous prime is 9721247. The next prime is 9721273. The reversal of 9721254 is 4521279.

It is a sphenic number, since it is the product of 3 distinct primes.

9721254 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 810099 + ... + 810110.

It is an arithmetic number, because the mean of its divisors is an integer number (2430315).

Almost surely, 2^9721254 is an apocalyptic number.

9721254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9721254 is a wasteful number, since it uses less digits than its factorization.

9721254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620214.

The product of its digits is 5040, while the sum is 30.

The square root of 9721254 is about 3117.8925574817. The cubic root of 9721254 is about 213.4227755377.

The spelling of 9721254 in words is "nine million, seven hundred twenty-one thousand, two hundred fifty-four".