28529541 has 6 divisors (see below), whose sum is σ = 41209350. Its totient is φ = 19019688.

The previous prime is 28529539. The next prime is 28529549. The reversal of 28529541 is 14592582.

It can be written as a sum of positive squares in only one way, i.e., 20061441 + 8468100 = 4479^2 + 2910^2 .

It is not a de Polignac number, because 28529541 - 2¹ = 28529539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28529496 and 28529505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28529549) 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 5 ways as a sum of consecutive naturals, for example, 1584966 + ... + 1584983.

It is an arithmetic number, because the mean of its divisors is an integer number (6868225).

Almost surely, 2^28529541 is an apocalyptic number.

It is an amenable number.

28529541 is a deficient number, since it is larger than the sum of its proper divisors (12679809).

28529541 is a wasteful number, since it uses less digits than its factorization.

28529541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169955 (or 3169952 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 28529541 is about 5341.3051775760. The cubic root of 28529541 is about 305.5612384079.

The spelling of 28529541 in words is "twenty-eight million, five hundred twenty-nine thousand, five hundred forty-one".