1916765 has 8 divisors (see below), whose sum is σ = 2321880. Its totient is φ = 1518912.

The previous prime is 1916753. The next prime is 1916773. The reversal of 1916765 is 5676191.

It can be written as a sum of positive squares in 4 ways, for example, as 822649 + 1094116 = 907^2 + 1046^2 .

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 1916765 - 2⁴ = 1916749 is a prime.

It is a congruent number.

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, 1214 + ... + 2303.

It is an arithmetic number, because the mean of its divisors is an integer number (290235).

2^1916765 is an apocalyptic number.

It is an amenable number.

1916765 is a deficient number, since it is larger than the sum of its proper divisors (405115).

1916765 is a wasteful number, since it uses less digits than its factorization.

1916765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631.

The product of its digits is 11340, while the sum is 35.

The square root of 1916765 is about 1384.4728238575. The cubic root of 1916765 is about 124.2194561554.

The spelling of 1916765 in words is "one million, nine hundred sixteen thousand, seven hundred sixty-five".