6898840 has 32 divisors (see below), whose sum is σ = 16717680. Its totient is φ = 2547072.

The previous prime is 6898823. The next prime is 6898841. The reversal of 6898840 is 488986.

6898840 = T₃₁₁ + T₃₁₂ + ... + T₄₁₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6898841) 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, 6114 + ... + 7153.

Almost surely, 2^6898840 is an apocalyptic number.

It is an amenable number.

6898840 is an abundant number, since it is smaller than the sum of its proper divisors (9818840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6898840 is a wasteful number, since it uses less digits than its factorization.

6898840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13291 (or 13287 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 6898840 is about 2626.5642958055. The cubic root of 6898840 is about 190.3671570826.

The spelling of 6898840 in words is "six million, eight hundred ninety-eight thousand, eight hundred forty".