1966265 has 8 divisors (see below), whose sum is σ = 2696640. Its totient is φ = 1348272.

The previous prime is 1966259. The next prime is 1966297. The reversal of 1966265 is 5626691.

It is a happy number.

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 1966265 - 2⁸ = 1966009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 56179 = 1966265 / (1 + 9 + 6 + 6 + 2 + 6 + 5).

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, 28055 + ... + 28124.

It is an arithmetic number, because the mean of its divisors is an integer number (337080).

2^1966265 is an apocalyptic number.

It is an amenable number.

1966265 is a deficient number, since it is larger than the sum of its proper divisors (730375).

1966265 is an equidigital number, since it uses as much as digits as its factorization.

1966265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56191.

The product of its digits is 19440, while the sum is 35.

The square root of 1966265 is about 1402.2357148497. The cubic root of 1966265 is about 125.2796937047.

The spelling of 1966265 in words is "one million, nine hundred sixty-six thousand, two hundred sixty-five".