7987415707 has 2 divisors, whose sum is σ = 7987415708. Its totient is φ = 7987415706.

The previous prime is 7987415651. The next prime is 7987415717. The reversal of 7987415707 is 7075147897.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7987415707 is a prime.

It is not a weakly prime, because it can be changed into another prime (7987415717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3993707853 + 3993707854.

It is an arithmetic number, because the mean of its divisors is an integer number (3993707854).

Almost surely, 2^7987415707 is an apocalyptic number.

7987415707 is a deficient number, since it is larger than the sum of its proper divisors (1).

7987415707 is an equidigital number, since it uses as much as digits as its factorization.

7987415707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3457440, while the sum is 55.

The square root of 7987415707 is about 89372.3430765917. The cubic root of 7987415707 is about 1998.9507585591.

The spelling of 7987415707 in words is "seven billion, nine hundred eighty-seven million, four hundred fifteen thousand, seven hundred seven".