6690235 has 8 divisors (see below), whose sum is σ = 8064720. Its totient is φ = 5327904.

The previous prime is 6690227. The next prime is 6690239. The reversal of 6690235 is 5320966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6690235 - 2³ = 6690227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6690197 and 6690206.

It is not an unprimeable number, because it can be changed into a prime (6690239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1777 + ... + 4066.

It is an arithmetic number, because the mean of its divisors is an integer number (1008090).

Almost surely, 2^6690235 is an apocalyptic number.

6690235 is a deficient number, since it is larger than the sum of its proper divisors (1374485).

6690235 is a wasteful number, since it uses less digits than its factorization.

6690235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 6690235 is about 2586.5488590011. The cubic root of 6690235 is about 188.4287314395.

The spelling of 6690235 in words is "six million, six hundred ninety thousand, two hundred thirty-five".