9734721 has 4 divisors (see below), whose sum is σ = 12979632. Its totient is φ = 6489812.

The previous prime is 9734719. The next prime is 9734729. The reversal of 9734721 is 1274379.

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 9734721 - 2¹ = 9734719 is a prime.

It is a d-powerful number, because it can be written as 9⁷ + 7⁵ + 3¹⁴ + 4⁶ + 7⁵ + 2¹⁷ + 1 .

It is not an unprimeable number, because it can be changed into a prime (9734729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622451 + ... + 1622456.

It is an arithmetic number, because the mean of its divisors is an integer number (3244908).

Almost surely, 2^9734721 is an apocalyptic number.

It is an amenable number.

9734721 is a deficient number, since it is larger than the sum of its proper divisors (3244911).

9734721 is a wasteful number, since it uses less digits than its factorization.

9734721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244910.

The product of its digits is 10584, while the sum is 33.

The square root of 9734721 is about 3120.0514418836. The cubic root of 9734721 is about 213.5212826621.

The spelling of 9734721 in words is "nine million, seven hundred thirty-four thousand, seven hundred twenty-one".