6897516387 has 8 divisors (see below), whose sum is σ = 9420998160. Its totient is φ = 4486189440.

The previous prime is 6897516383. The next prime is 6897516421. The reversal of 6897516387 is 7836157986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6897516387 - 2² = 6897516383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6897516387.

It is not an unprimeable number, because it can be changed into a prime (6897516383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28038562 + ... + 28038807.

It is an arithmetic number, because the mean of its divisors is an integer number (1177624770).

Almost surely, 2^6897516387 is an apocalyptic number.

6897516387 is a deficient number, since it is larger than the sum of its proper divisors (2523481773).

6897516387 is a wasteful number, since it uses less digits than its factorization.

6897516387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56077413.

The product of its digits is 15240960, while the sum is 60.

The square root of 6897516387 is about 83051.2876901978. The cubic root of 6897516387 is about 1903.5498167529.

The spelling of 6897516387 in words is "six billion, eight hundred ninety-seven million, five hundred sixteen thousand, three hundred eighty-seven".