9780487 has 2 divisors, whose sum is σ = 9780488. Its totient is φ = 9780486.

The previous prime is 9780473. The next prime is 9780493. The reversal of 9780487 is 7840879.

9780487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9780487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9780187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4890243 + 4890244.

It is an arithmetic number, because the mean of its divisors is an integer number (4890244).

Almost surely, 2^9780487 is an apocalyptic number.

9780487 is a deficient number, since it is larger than the sum of its proper divisors (1).

9780487 is an equidigital number, since it uses as much as digits as its factorization.

9780487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 9780487 is about 3127.3770159672. The cubic root of 9780487 is about 213.8553700016.

The spelling of 9780487 in words is "nine million, seven hundred eighty thousand, four hundred eighty-seven".