6898440 has 32 divisors (see below), whose sum is σ = 20695680. Its totient is φ = 1839552.

The previous prime is 6898417. The next prime is 6898483. The reversal of 6898440 is 448986.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28624 + ... + 28863.

It is an arithmetic number, because the mean of its divisors is an integer number (646740).

Almost surely, 2^6898440 is an apocalyptic number.

6898440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6898440 is an abundant number, since it is smaller than the sum of its proper divisors (13797240).

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

6898440 is a wasteful number, since it uses less digits than its factorization.

6898440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57501 (or 57497 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 6898440 is about 2626.4881496020. The cubic root of 6898440 is about 190.3634778005.

The spelling of 6898440 in words is "six million, eight hundred ninety-eight thousand, four hundred forty".