6698705 has 16 divisors (see below), whose sum is σ = 8712144. Its totient is φ = 4915200.

The previous prime is 6698689. The next prime is 6698729. The reversal of 6698705 is 5078966.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1048576 + 5650129 = 1024^2 + 2377^2 .

It is not a de Polignac number, because 6698705 - 2⁴ = 6698689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16505 + ... + 16905.

It is an arithmetic number, because the mean of its divisors is an integer number (544509).

Almost surely, 2^6698705 is an apocalyptic number.

6698705 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6698705 is a deficient number, since it is larger than the sum of its proper divisors (2013439).

6698705 is a wasteful number, since it uses less digits than its factorization.

6698705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 6698705 is about 2588.1856579465. The cubic root of 6698705 is about 188.5082163558.

The spelling of 6698705 in words is "six million, six hundred ninety-eight thousand, seven hundred five".