7782286087 has 2 divisors, whose sum is σ = 7782286088. Its totient is φ = 7782286086.

The previous prime is 7782286081. The next prime is 7782286091. The reversal of 7782286087 is 7806822877.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7782286087 - 2¹¹ = 7782284039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7782286081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3891143043 + 3891143044.

It is an arithmetic number, because the mean of its divisors is an integer number (3891143044).

Almost surely, 2^7782286087 is an apocalyptic number.

7782286087 is a deficient number, since it is larger than the sum of its proper divisors (1).

7782286087 is an equidigital number, since it uses as much as digits as its factorization.

7782286087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4214784, while the sum is 55.

The square root of 7782286087 is about 88217.2663768267. The cubic root of 7782286087 is about 1981.6900584774.

The spelling of 7782286087 in words is "seven billion, seven hundred eighty-two million, two hundred eighty-six thousand, eighty-seven".