1872093 has 4 divisors (see below), whose sum is σ = 2496128. Its totient is φ = 1248060.

The previous prime is 1872049. The next prime is 1872097. The reversal of 1872093 is 3902781.

It is a happy number.

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: 3902781 = 3 ⋅1300927.

It is not a de Polignac number, because 1872093 - 2¹⁶ = 1806557 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

1872093 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1872093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312013 + ... + 312018.

It is an arithmetic number, because the mean of its divisors is an integer number (624032).

2^1872093 is an apocalyptic number.

It is an amenable number.

1872093 is a deficient number, since it is larger than the sum of its proper divisors (624035).

1872093 is an equidigital number, since it uses as much as digits as its factorization.

1872093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624034.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1872093 is about 1368.2444956951. The cubic root of 1872093 is about 123.2468438341.

The spelling of 1872093 in words is "one million, eight hundred seventy-two thousand, ninety-three".