2978107087 has 2 divisors, whose sum is σ = 2978107088. Its totient is φ = 2978107086.

The previous prime is 2978107057. The next prime is 2978107103. The reversal of 2978107087 is 7807018792.

2978107087 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-2978107087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2978107087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2978107007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489053543 + 1489053544.

It is an arithmetic number, because the mean of its divisors is an integer number (1489053544).

Almost surely, 2^2978107087 is an apocalyptic number.

2978107087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2978107087 is an equidigital number, since it uses as much as digits as its factorization.

2978107087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 49.

The square root of 2978107087 is about 54572.0357600850. The cubic root of 2978107087 is about 1438.7326630817.

The spelling of 2978107087 in words is "two billion, nine hundred seventy-eight million, one hundred seven thousand, eighty-seven".