7896950909 has 2 divisors, whose sum is σ = 7896950910. Its totient is φ = 7896950908.

The previous prime is 7896950899. The next prime is 7896950911. The reversal of 7896950909 is 9090596987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6159895225 + 1737055684 = 78485^2 + 41678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7896950909 is a prime.

Together with 7896950911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7896950969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3948475454 + 3948475455.

It is an arithmetic number, because the mean of its divisors is an integer number (3948475455).

Almost surely, 2^7896950909 is an apocalyptic number.

It is an amenable number.

7896950909 is a deficient number, since it is larger than the sum of its proper divisors (1).

7896950909 is an equidigital number, since it uses as much as digits as its factorization.

7896950909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 62.

The square root of 7896950909 is about 88864.7900408255. The cubic root of 7896950909 is about 1991.3754376725.

The spelling of 7896950909 in words is "seven billion, eight hundred ninety-six million, nine hundred fifty thousand, nine hundred nine".