1916485 has 4 divisors (see below), whose sum is σ = 2299788. Its totient is φ = 1533184.

The previous prime is 1916471. The next prime is 1916531. The reversal of 1916485 is 5846191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 799236 + 1117249 = 894^2 + 1057^2 .

It is a cyclic number.

It is not a de Polignac number, because 1916485 - 2¹⁹ = 1392197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1916485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191644 + ... + 191653.

It is an arithmetic number, because the mean of its divisors is an integer number (574947).

2^1916485 is an apocalyptic number.

It is an amenable number.

1916485 is a deficient number, since it is larger than the sum of its proper divisors (383303).

1916485 is an equidigital number, since it uses as much as digits as its factorization.

1916485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383302.

The product of its digits is 8640, while the sum is 34.

The square root of 1916485 is about 1384.3716986417. The cubic root of 1916485 is about 124.2134072238.

It can be divided in two parts, 1916 and 485, that added together give a 4-th power (2401 = 7⁴).

The spelling of 1916485 in words is "one million, nine hundred sixteen thousand, four hundred eighty-five".