1914859 has 4 divisors (see below), whose sum is σ = 1933920. Its totient is φ = 1895800.

The previous prime is 1914853. The next prime is 1914883. The reversal of 1914859 is 9584191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9584191 = 2879 ⋅3329.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1914859 is a prime.

It is a Duffinian number.

1914859 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1914853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9379 + ... + 9580.

It is an arithmetic number, because the mean of its divisors is an integer number (483480).

2^1914859 is an apocalyptic number.

1914859 is a deficient number, since it is larger than the sum of its proper divisors (19061).

1914859 is a wasteful number, since it uses less digits than its factorization.

1914859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19060.

The product of its digits is 12960, while the sum is 37.

The square root of 1914859 is about 1383.7843040012. The cubic root of 1914859 is about 124.1782685634.

It can be divided in two parts, 191 and 4859, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 1914859 in words is "one million, nine hundred fourteen thousand, eight hundred fifty-nine".