6378541 has 16 divisors (see below), whose sum is σ = 7182000. Its totient is φ = 5626368.

The previous prime is 6378517. The next prime is 6378551. The reversal of 6378541 is 1458736.

It can be written as a sum of positive squares in 8 ways, for example, as 756900 + 5621641 = 870^2 + 2371^2 .

It is not a de Polignac number, because 6378541 - 2¹¹ = 6376493 is a prime.

It is a Duffinian number.

Its product of digits (20160) is a multiple of the sum of its prime divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 6378497 and 6378506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6378551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42735 + ... + 42883.

It is an arithmetic number, because the mean of its divisors is an integer number (448875).

Almost surely, 2^6378541 is an apocalyptic number.

It is an amenable number.

6378541 is a deficient number, since it is larger than the sum of its proper divisors (803459).

6378541 is a wasteful number, since it uses less digits than its factorization.

6378541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its digits is 20160, while the sum is 34.

The square root of 6378541 is about 2525.5773597338. The cubic root of 6378541 is about 185.4558129581.

The spelling of 6378541 in words is "six million, three hundred seventy-eight thousand, five hundred forty-one".