6698643 has 12 divisors (see below), whose sum is σ = 10389960. Its totient is φ = 3827712.

The previous prime is 6698633. The next prime is 6698651. The reversal of 6698643 is 3468966.

It is not a de Polignac number, because 6698643 - 2⁵ = 6698611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6698595 and 6698604.

It is not an unprimeable number, because it can be changed into a prime (6698633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22638 + ... + 22931.

It is an arithmetic number, because the mean of its divisors is an integer number (865830).

Almost surely, 2^6698643 is an apocalyptic number.

6698643 is a deficient number, since it is larger than the sum of its proper divisors (3691317).

6698643 is a wasteful number, since it uses less digits than its factorization.

6698643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45586 (or 45579 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 6698643 is about 2588.1736804164. The cubic root of 6698643 is about 188.5076347734.

The spelling of 6698643 in words is "six million, six hundred ninety-eight thousand, six hundred forty-three".