6989409307 has 2 divisors, whose sum is σ = 6989409308. Its totient is φ = 6989409306.

The previous prime is 6989409299. The next prime is 6989409311. The reversal of 6989409307 is 7039049896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6989409307 - 2³ = 6989409299 is a prime.

It is not a weakly prime, because it can be changed into another prime (6989409377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494704653 + 3494704654.

It is an arithmetic number, because the mean of its divisors is an integer number (3494704654).

Almost surely, 2^6989409307 is an apocalyptic number.

6989409307 is a deficient number, since it is larger than the sum of its proper divisors (1).

6989409307 is an equidigital number, since it uses as much as digits as its factorization.

6989409307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 6989409307 is about 83602.6871996349. The cubic root of 6989409307 is about 1911.9659688385.

The spelling of 6989409307 in words is "six billion, nine hundred eighty-nine million, four hundred nine thousand, three hundred seven".