2001923 has 8 divisors (see below), whose sum is σ = 2496000. Its totient is φ = 1559880.

The previous prime is 2001919. The next prime is 2001953. The reversal of 2001923 is 3291002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001923 - 2² = 2001919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12923 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (312000).

2^2001923 is an apocalyptic number.

2001923 is a deficient number, since it is larger than the sum of its proper divisors (494077).

2001923 is a wasteful number, since it uses less digits than its factorization.

2001923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26017.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2001923 is about 1414.8932821948. The cubic root of 2001923 is about 126.0324725241.

Adding to 2001923 its reverse (3291002), we get a palindrome (5292925).

The spelling of 2001923 in words is "two million, one thousand, nine hundred twenty-three".