28487603 has 2 divisors, whose sum is σ = 28487604. Its totient is φ = 28487602.

The previous prime is 28487587. The next prime is 28487617. The reversal of 28487603 is 30678482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28487603 - 2⁴ = 28487587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28487623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14243801 + 14243802.

It is an arithmetic number, because the mean of its divisors is an integer number (14243802).

Almost surely, 2^28487603 is an apocalyptic number.

28487603 is a deficient number, since it is larger than the sum of its proper divisors (1).

28487603 is an equidigital number, since it uses as much as digits as its factorization.

28487603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 28487603 is about 5337.3779142946. The cubic root of 28487603 is about 305.4114414956.

The spelling of 28487603 in words is "twenty-eight million, four hundred eighty-seven thousand, six hundred three".