2103993 has 6 divisors (see below), whose sum is σ = 3039114. Its totient is φ = 1402656.

The previous prime is 2103989. The next prime is 2104013. The reversal of 2103993 is 3993012.

It can be written as a sum of positive squares in only one way, i.e., 1710864 + 393129 = 1308^2 + 627^2 .

It is not a de Polignac number, because 2103993 - 2² = 2103989 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 0 + 3³ + 9 + 9⁴ + 3⁵ .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2103953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116880 + ... + 116897.

It is an arithmetic number, because the mean of its divisors is an integer number (506519).

2^2103993 is an apocalyptic number.

It is an amenable number.

2103993 is a deficient number, since it is larger than the sum of its proper divisors (935121).

2103993 is a wasteful number, since it uses less digits than its factorization.

2103993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233783 (or 233780 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 2103993 is about 1450.5147362230. The cubic root of 2103993 is about 128.1390294374.

The spelling of 2103993 in words is "two million, one hundred three thousand, nine hundred ninety-three".