1916093 has 4 divisors (see below), whose sum is σ = 2016960. Its totient is φ = 1815228.

The previous prime is 1916069. The next prime is 1916099. The reversal of 1916093 is 3906191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3906191 = 19 ⋅205589.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1916093 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 (1916099) 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, 50405 + ... + 50442.

It is an arithmetic number, because the mean of its divisors is an integer number (504240).

2^1916093 is an apocalyptic number.

It is an amenable number.

1916093 is a deficient number, since it is larger than the sum of its proper divisors (100867).

1916093 is a wasteful number, since it uses less digits than its factorization.

1916093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100866.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1916093 is about 1384.2301109281. The cubic root of 1916093 is about 124.2049377296.

The spelling of 1916093 in words is "one million, nine hundred sixteen thousand, ninety-three".