2278364087 has 2 divisors, whose sum is σ = 2278364088. Its totient is φ = 2278364086.

The previous prime is 2278364083. The next prime is 2278364111. The reversal of 2278364087 is 7804638722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2278364087 - 2² = 2278364083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2278364083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139182043 + 1139182044.

It is an arithmetic number, because the mean of its divisors is an integer number (1139182044).

Almost surely, 2^2278364087 is an apocalyptic number.

2278364087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2278364087 is an equidigital number, since it uses as much as digits as its factorization.

2278364087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 2278364087 is about 47732.2122575520. The cubic root of 2278364087 is about 1315.8540115077.

The spelling of 2278364087 in words is "two billion, two hundred seventy-eight million, three hundred sixty-four thousand, eighty-seven".