28348487 has 2 divisors, whose sum is σ = 28348488. Its totient is φ = 28348486.

The previous prime is 28348447. The next prime is 28348499. The reversal of 28348487 is 78484382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28348487 - 2¹⁰ = 28347463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28348427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14174243 + 14174244.

It is an arithmetic number, because the mean of its divisors is an integer number (14174244).

Almost surely, 2^28348487 is an apocalyptic number.

28348487 is a deficient number, since it is larger than the sum of its proper divisors (1).

28348487 is an equidigital number, since it uses as much as digits as its factorization.

28348487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 344064, while the sum is 44.

The square root of 28348487 is about 5324.3297230731. The cubic root of 28348487 is about 304.9134825822.

The spelling of 28348487 in words is "twenty-eight million, three hundred forty-eight thousand, four hundred eighty-seven".