1906363 has 4 divisors (see below), whose sum is σ = 2018520. Its totient is φ = 1794208.

The previous prime is 1906361. The next prime is 1906379. The reversal of 1906363 is 3636091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3636091 = 167 ⋅21773.

It is a cyclic number.

It is not a de Polignac number, because 1906363 - 2¹ = 1906361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1906361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56053 + ... + 56086.

It is an arithmetic number, because the mean of its divisors is an integer number (504630).

2^1906363 is an apocalyptic number.

1906363 is a deficient number, since it is larger than the sum of its proper divisors (112157).

1906363 is a wasteful number, since it uses less digits than its factorization.

1906363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112156.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 1906363 is about 1380.7110486992. The cubic root of 1906363 is about 123.9943415732.

The spelling of 1906363 in words is "one million, nine hundred six thousand, three hundred sixty-three".