6898819 has 2 divisors, whose sum is σ = 6898820. Its totient is φ = 6898818.

The previous prime is 6898817. The next prime is 6898823. The reversal of 6898819 is 9188986.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6898819 - 2¹ = 6898817 is a prime.

It is a super-2 number, since 2×6898819² = 95187407189522, which contains 22 as substring.

Together with 6898817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6898813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3449409 + 3449410.

It is an arithmetic number, because the mean of its divisors is an integer number (3449410).

Almost surely, 2^6898819 is an apocalyptic number.

6898819 is a deficient number, since it is larger than the sum of its proper divisors (1).

6898819 is an equidigital number, since it uses as much as digits as its factorization.

6898819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 49.

The square root of 6898819 is about 2626.5602981847. The cubic root of 6898819 is about 190.3669639238.

The spelling of 6898819 in words is "six million, eight hundred ninety-eight thousand, eight hundred nineteen".