1207865 has 8 divisors (see below), whose sum is σ = 1488840. Its totient is φ = 940032.

The previous prime is 1207841. The next prime is 1207883. The reversal of 1207865 is 5687021.

It can be written as a sum of positive squares in 4 ways, for example, as 109561 + 1098304 = 331^2 + 1048^2 .

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 1207865 - 2¹⁰ = 1206841 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3080 + ... + 3449.

It is an arithmetic number, because the mean of its divisors is an integer number (186105).

2^1207865 is an apocalyptic number.

It is an amenable number.

1207865 is a deficient number, since it is larger than the sum of its proper divisors (280975).

1207865 is an equidigital number, since it uses as much as digits as its factorization.

1207865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1207865 is about 1099.0291169937. The cubic root of 1207865 is about 106.4975129280.

The spelling of 1207865 in words is "one million, two hundred seven thousand, eight hundred sixty-five".