28477541 has 2 divisors, whose sum is σ = 28477542. Its totient is φ = 28477540.

The previous prime is 28477529. The next prime is 28477571. The reversal of 28477541 is 14577482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16080100 + 12397441 = 4010^2 + 3521^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28477541 is a prime.

It is equal to p_1769258 and since 28477541 and 1769258 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 28477495 and 28477504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28477571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14238770 + 14238771.

It is an arithmetic number, because the mean of its divisors is an integer number (14238771).

Almost surely, 2^28477541 is an apocalyptic number.

It is an amenable number.

28477541 is a deficient number, since it is larger than the sum of its proper divisors (1).

28477541 is an equidigital number, since it uses as much as digits as its factorization.

28477541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 38.

The square root of 28477541 is about 5336.4352333744. The cubic root of 28477541 is about 305.3754795159.

The spelling of 28477541 in words is "twenty-eight million, four hundred seventy-seven thousand, five hundred forty-one".