6897770347 has 4 divisors (see below), whose sum is σ = 7428368080. Its totient is φ = 6367172616.

The previous prime is 6897770329. The next prime is 6897770377. The reversal of 6897770347 is 7430777986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6897770347 - 2¹¹ = 6897768299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6897770291 and 6897770300.

It is not an unprimeable number, because it can be changed into a prime (6897770377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265298847 + ... + 265298872.

It is an arithmetic number, because the mean of its divisors is an integer number (1857092020).

Almost surely, 2^6897770347 is an apocalyptic number.

6897770347 is a deficient number, since it is larger than the sum of its proper divisors (530597733).

6897770347 is a wasteful number, since it uses less digits than its factorization.

6897770347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530597732.

The product of its (nonzero) digits is 12446784, while the sum is 58.

The square root of 6897770347 is about 83052.8166108772. The cubic root of 6897770347 is about 1903.5731787647.

The spelling of 6897770347 in words is "six billion, eight hundred ninety-seven million, seven hundred seventy thousand, three hundred forty-seven".