7699678397 has 2 divisors, whose sum is σ = 7699678398. Its totient is φ = 7699678396.

The previous prime is 7699678381. The next prime is 7699678423. The reversal of 7699678397 is 7938769967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4812335641 + 2887342756 = 69371^2 + 53734^2 .

It is a cyclic number.

It is not a de Polignac number, because 7699678397 - 2⁴ = 7699678381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7699678397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7699678367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3849839198 + 3849839199.

It is an arithmetic number, because the mean of its divisors is an integer number (3849839199).

Almost surely, 2^7699678397 is an apocalyptic number.

It is an amenable number.

7699678397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7699678397 is an equidigital number, since it uses as much as digits as its factorization.

7699678397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216040608, while the sum is 71.

The square root of 7699678397 is about 87747.8113516229. The cubic root of 7699678397 is about 1974.6533299129.

The spelling of 7699678397 in words is "seven billion, six hundred ninety-nine million, six hundred seventy-eight thousand, three hundred ninety-seven".