6261665 has 8 divisors (see below), whose sum is σ = 7560000. Its totient is φ = 4978672.

The previous prime is 6261649. The next prime is 6261677. The reversal of 6261665 is 5661626.

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 6261665 - 2⁴ = 6261649 is a prime.

It is an unprimeable number.

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, 2915 + ... + 4584.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 2^6261665 is an apocalyptic number.

It is an amenable number.

6261665 is a deficient number, since it is larger than the sum of its proper divisors (1298335).

6261665 is a wasteful number, since it uses less digits than its factorization.

6261665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7671.

The product of its digits is 12960, while the sum is 32.

The square root of 6261665 is about 2502.3319124369. The cubic root of 6261665 is about 184.3161016505.

The spelling of 6261665 in words is "six million, two hundred sixty-one thousand, six hundred sixty-five".