7543641 has 16 divisors (see below), whose sum is σ = 11741184. Its totient is φ = 4218384.

The previous prime is 7543639. The next prime is 7543643. The reversal of 7543641 is 1463457.

7543641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7543639) and next prime (7543643).

It is not a de Polignac number, because 7543641 - 2¹ = 7543639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7543599 and 7543608.

It is not an unprimeable number, because it can be changed into a prime (7543643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2835 + ... + 4808.

It is an arithmetic number, because the mean of its divisors is an integer number (733824).

Almost surely, 2^7543641 is an apocalyptic number.

It is an amenable number.

7543641 is a deficient number, since it is larger than the sum of its proper divisors (4197543).

7543641 is a wasteful number, since it uses less digits than its factorization.

7543641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700.

The product of its digits is 10080, while the sum is 30.

The square root of 7543641 is about 2746.5689505272. The cubic root of 7543641 is about 196.1223118976.

The spelling of 7543641 in words is "seven million, five hundred forty-three thousand, six hundred forty-one".