6698879397 has 24 divisors (see below), whose sum is σ = 11116385280. Its totient is φ = 3807882720.

The previous prime is 6698879371. The next prime is 6698879471. The reversal of 6698879397 is 7939788966.

It is not a de Polignac number, because 6698879397 - 2⁶ = 6698879333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6698871397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266322 + ... + 290387.

It is an arithmetic number, because the mean of its divisors is an integer number (463182720).

Almost surely, 2^6698879397 is an apocalyptic number.

It is an amenable number.

6698879397 is a deficient number, since it is larger than the sum of its proper divisors (4417505883).

6698879397 is a wasteful number, since it uses less digits than its factorization.

6698879397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556913 (or 556910 counting only the distinct ones).

The product of its digits is 246903552, while the sum is 72.

The square root of 6698879397 is about 81846.6822601869. The cubic root of 6698879397 is about 1885.0985224322.

The spelling of 6698879397 in words is "six billion, six hundred ninety-eight million, eight hundred seventy-nine thousand, three hundred ninety-seven".