6541628 has 12 divisors (see below), whose sum is σ = 11468520. Its totient is φ = 3264912.

The previous prime is 6541621. The next prime is 6541663. The reversal of 6541628 is 8261456.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6541594 and 6541603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541621) 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, 1850 + ... + 4062.

It is an arithmetic number, because the mean of its divisors is an integer number (955710).

Almost surely, 2^6541628 is an apocalyptic number.

It is an amenable number.

6541628 is a deficient number, since it is larger than the sum of its proper divisors (4926892).

6541628 is a wasteful number, since it uses less digits than its factorization.

6541628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956 (or 2954 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 6541628 is about 2557.6606498908. The cubic root of 6541628 is about 187.0231128552.

The spelling of 6541628 in words is "six million, five hundred forty-one thousand, six hundred twenty-eight".