2116493 has 4 divisors (see below), whose sum is σ = 2126208. Its totient is φ = 2106780.

The previous prime is 2116487. The next prime is 2116501. The reversal of 2116493 is 3946112.

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.

It is a cyclic number.

It is not a de Polignac number, because 2116493 - 2¹⁰ = 2115469 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 (2116403) 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, 4523 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (531552).

2^2116493 is an apocalyptic number.

It is an amenable number.

2116493 is a deficient number, since it is larger than the sum of its proper divisors (9715).

2116493 is an equidigital number, since it uses as much as digits as its factorization.

2116493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9714.

The product of its digits is 1296, while the sum is 26.

The square root of 2116493 is about 1454.8171706438. The cubic root of 2116493 is about 128.3922901463.

The spelling of 2116493 in words is "two million, one hundred sixteen thousand, four hundred ninety-three".