6896886949 has 2 divisors, whose sum is σ = 6896886950. Its totient is φ = 6896886948.

The previous prime is 6896886947. The next prime is 6896887001. The reversal of 6896886949 is 9496886986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4114324449 + 2782562500 = 64143^2 + 52750^2 .

It is a cyclic number.

It is not a de Polignac number, because 6896886949 - 2¹ = 6896886947 is a prime.

Together with 6896886947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6896886943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3448443474 + 3448443475.

It is an arithmetic number, because the mean of its divisors is an integer number (3448443475).

Almost surely, 2^6896886949 is an apocalyptic number.

It is an amenable number.

6896886949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6896886949 is an equidigital number, since it uses as much as digits as its factorization.

6896886949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322486272, while the sum is 73.

The square root of 6896886949 is about 83047.4981501550. The cubic root of 6896886949 is about 1903.4919117056.

The spelling of 6896886949 in words is "six billion, eight hundred ninety-six million, eight hundred eighty-six thousand, nine hundred forty-nine".