6898887 has 6 divisors (see below), whose sum is σ = 9965072. Its totient is φ = 4599252.

The previous prime is 6898883. The next prime is 6898891. The reversal of 6898887 is 7888986.

It is an interprime number because it is at equal distance from previous prime (6898883) and next prime (6898891).

It is not a de Polignac number, because 6898887 - 2² = 6898883 is a prime.

It is a Duffinian number.

6898887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6898883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 383263 + ... + 383280.

Almost surely, 2^6898887 is an apocalyptic number.

6898887 is a deficient number, since it is larger than the sum of its proper divisors (3066185).

6898887 is a wasteful number, since it uses less digits than its factorization.

6898887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766549 (or 766546 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 6898887 is about 2626.5732428394. The cubic root of 6898887 is about 190.3675893889.

Subtracting 6898887 from its reverse (7888986), we obtain a palindrome (990099).

The spelling of 6898887 in words is "six million, eight hundred ninety-eight thousand, eight hundred eighty-seven".