2116749 has 8 divisors (see below), whose sum is σ = 2856672. Its totient is φ = 1394000.

The previous prime is 2116747. The next prime is 2116757. The reversal of 2116749 is 9476112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2116749 - 2¹ = 2116747 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116747) 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, 4002 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (357084).

2^2116749 is an apocalyptic number.

It is an amenable number.

2116749 is a deficient number, since it is larger than the sum of its proper divisors (739923).

2116749 is an equidigital number, since it uses as much as digits as its factorization.

2116749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587.

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

The square root of 2116749 is about 1454.9051515477. The cubic root of 2116749 is about 128.3974664925.

The spelling of 2116749 in words is "two million, one hundred sixteen thousand, seven hundred forty-nine".