2028636487 has 2 divisors, whose sum is σ = 2028636488. Its totient is φ = 2028636486.

The previous prime is 2028636451. The next prime is 2028636527. The reversal of 2028636487 is 7846368202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2028636487 - 2⁷ = 2028636359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028636437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014318243 + 1014318244.

It is an arithmetic number, because the mean of its divisors is an integer number (1014318244).

Almost surely, 2^2028636487 is an apocalyptic number.

2028636487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028636487 is an equidigital number, since it uses as much as digits as its factorization.

2028636487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 2028636487 is about 45040.3872874113. The cubic root of 2028636487 is about 1265.9058615998.

The spelling of 2028636487 in words is "two billion, twenty-eight million, six hundred thirty-six thousand, four hundred eighty-seven".