2093811 has 4 divisors (see below), whose sum is σ = 2791752. Its totient is φ = 1395872.

The previous prime is 2093807. The next prime is 2093813. The reversal of 2093811 is 1183902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2093811 - 2² = 2093807 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2093813) 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, 348966 + ... + 348971.

It is an arithmetic number, because the mean of its divisors is an integer number (697938).

2^2093811 is an apocalyptic number.

2093811 is a deficient number, since it is larger than the sum of its proper divisors (697941).

2093811 is an equidigital number, since it uses as much as digits as its factorization.

2093811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697940.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2093811 is about 1447.0006910848. Note that the first 3 decimals coincide. The cubic root of 2093811 is about 127.9319910529.

Subtracting from 2093811 its reverse (1183902), we obtain a palindrome (909909).

The spelling of 2093811 in words is "two million, ninety-three thousand, eight hundred eleven".