9740521 has 8 divisors (see below), whose sum is σ = 11718080. Its totient is φ = 7909488.

The previous prime is 9740513. The next prime is 9740543. The reversal of 9740521 is 1250479.

It is a happy number.

9740521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9740521 - 2³ = 9740513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9740521.

It is not an unprimeable number, because it can be changed into a prime (9740501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36486 + ... + 36751.

It is an arithmetic number, because the mean of its divisors is an integer number (1464760).

Almost surely, 2^9740521 is an apocalyptic number.

It is an amenable number.

9740521 is a deficient number, since it is larger than the sum of its proper divisors (1977559).

9740521 is a wasteful number, since it uses less digits than its factorization.

9740521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73263.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 9740521 is about 3120.9807753333. The cubic root of 9740521 is about 213.5636799589.

The spelling of 9740521 in words is "nine million, seven hundred forty thousand, five hundred twenty-one".