28590461 has 2 divisors, whose sum is σ = 28590462. Its totient is φ = 28590460.

The previous prime is 28590451. The next prime is 28590487. The reversal of 28590461 is 16409582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27762361 + 828100 = 5269^2 + 910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28590461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28590451) 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 as a sum of consecutive naturals, namely, 14295230 + 14295231.

It is an arithmetic number, because the mean of its divisors is an integer number (14295231).

Almost surely, 2^28590461 is an apocalyptic number.

It is an amenable number.

28590461 is a deficient number, since it is larger than the sum of its proper divisors (1).

28590461 is an equidigital number, since it uses as much as digits as its factorization.

28590461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 28590461 is about 5347.0048625375. The cubic root of 28590461 is about 305.7785752000.

The spelling of 28590461 in words is "twenty-eight million, five hundred ninety thousand, four hundred sixty-one".