6240665 has 8 divisors (see below), whose sum is σ = 7502280. Its totient is φ = 4983552.

The previous prime is 6240631. The next prime is 6240671. The reversal of 6240665 is 5660426.

It can be written as a sum of positive squares in 4 ways, for example, as 760384 + 5480281 = 872^2 + 2341^2 .

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 6240665 - 2¹⁶ = 6175129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4427 + ... + 5663.

It is an arithmetic number, because the mean of its divisors is an integer number (937785).

Almost surely, 2^6240665 is an apocalyptic number.

It is an amenable number.

6240665 is a deficient number, since it is larger than the sum of its proper divisors (1261615).

6240665 is a wasteful number, since it uses less digits than its factorization.

6240665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 6240665 is about 2498.1323023411. The cubic root of 6240665 is about 184.1098214117.

The spelling of 6240665 in words is "six million, two hundred forty thousand, six hundred sixty-five".