6894822397 has 2 divisors, whose sum is σ = 6894822398. Its totient is φ = 6894822396.

The previous prime is 6894822317. The next prime is 6894822433. The reversal of 6894822397 is 7932284986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6894645156 + 177241 = 83034^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 6894822397 - 2³¹ = 4747338749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6894822317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3447411198 + 3447411199.

It is an arithmetic number, because the mean of its divisors is an integer number (3447411199).

Almost surely, 2^6894822397 is an apocalyptic number.

It is an amenable number.

6894822397 is a deficient number, since it is larger than the sum of its proper divisors (1).

6894822397 is an equidigital number, since it uses as much as digits as its factorization.

6894822397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 58.

The square root of 6894822397 is about 83035.0672728095. The cubic root of 6894822397 is about 1903.3019588444.

The spelling of 6894822397 in words is "six billion, eight hundred ninety-four million, eight hundred twenty-two thousand, three hundred ninety-seven".