1914943 has 4 divisors (see below), whose sum is σ = 1951128. Its totient is φ = 1878760.

The previous prime is 1914923. The next prime is 1914947. The reversal of 1914943 is 3494191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1914943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914947) 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, 18013 + ... + 18118.

It is an arithmetic number, because the mean of its divisors is an integer number (487782).

2^1914943 is an apocalyptic number.

1914943 is a deficient number, since it is larger than the sum of its proper divisors (36185).

1914943 is an equidigital number, since it uses as much as digits as its factorization.

1914943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36184.

The product of its digits is 3888, while the sum is 31.

The square root of 1914943 is about 1383.8146552194. The cubic root of 1914943 is about 124.1800843319.

The spelling of 1914943 in words is "one million, nine hundred fourteen thousand, nine hundred forty-three".