6706491 has 8 divisors (see below), whose sum is σ = 9754944. Its totient is φ = 4064520.

The previous prime is 6706481. The next prime is 6706519. The reversal of 6706491 is 1946076.

It is a happy number.

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

It is not a de Polignac number, because 6706491 - 2⁵ = 6706459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 203227 = 6706491 / (6 + 7 + 0 + 6 + 4 + 9 + 1).

It is not an unprimeable number, because it can be changed into a prime (6706421) 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, 101581 + ... + 101646.

It is an arithmetic number, because the mean of its divisors is an integer number (1219368).

Almost surely, 2^6706491 is an apocalyptic number.

6706491 is a deficient number, since it is larger than the sum of its proper divisors (3048453).

6706491 is a wasteful number, since it uses less digits than its factorization.

6706491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203241.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 6706491 is about 2589.6893636110. The cubic root of 6706491 is about 188.5812233368.

The spelling of 6706491 in words is "six million, seven hundred six thousand, four hundred ninety-one".