7728441 has 8 divisors (see below), whose sum is σ = 11776704. Its totient is φ = 4416240.

The previous prime is 7728439. The next prime is 7728443. The reversal of 7728441 is 1448277.

It is an interprime number because it is at equal distance from previous prime (7728439) and next prime (7728443).

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

It is not a de Polignac number, because 7728441 - 2¹ = 7728439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7728443) 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, 183990 + ... + 184031.

It is an arithmetic number, because the mean of its divisors is an integer number (1472088).

Almost surely, 2^7728441 is an apocalyptic number.

It is an amenable number.

7728441 is a deficient number, since it is larger than the sum of its proper divisors (4048263).

7728441 is a wasteful number, since it uses less digits than its factorization.

7728441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368031.

The product of its digits is 12544, while the sum is 33.

The square root of 7728441 is about 2780.0073740909. The cubic root of 7728441 is about 197.7109085918.

The spelling of 7728441 in words is "seven million, seven hundred twenty-eight thousand, four hundred forty-one".