6984664897 has 16 divisors (see below), whose sum is σ = 8463076992. Its totient is φ = 5627324160.

The previous prime is 6984664891. The next prime is 6984664903. The reversal of 6984664897 is 7984664896.

It is an interprime number because it is at equal distance from previous prime (6984664891) and next prime (6984664903).

It is a cyclic number.

It is not a de Polignac number, because 6984664897 - 2¹⁵ = 6984632129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6984664891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54022 + ... + 129952.

It is an arithmetic number, because the mean of its divisors is an integer number (528942312).

Almost surely, 2^6984664897 is an apocalyptic number.

It is an amenable number.

6984664897 is a deficient number, since it is larger than the sum of its proper divisors (1478412095).

6984664897 is a wasteful number, since it uses less digits than its factorization.

6984664897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76728.

The product of its digits is 125411328, while the sum is 67.

The square root of 6984664897 is about 83574.3076369766. The cubic root of 6984664897 is about 1911.5332568436.

Subtracting 6984664897 from its reverse (7984664896), we obtain a palindrome (999999999).

The spelling of 6984664897 in words is "six billion, nine hundred eighty-four million, six hundred sixty-four thousand, eight hundred ninety-seven".