2119807 has 4 divisors (see below), whose sum is σ = 2146720. Its totient is φ = 2092896.

The previous prime is 2119783. The next prime is 2119829. The reversal of 2119807 is 7089112.

2119807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2119807 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 (2119837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13338 + ... + 13495.

It is an arithmetic number, because the mean of its divisors is an integer number (536680).

2^2119807 is an apocalyptic number.

2119807 is a deficient number, since it is larger than the sum of its proper divisors (26913).

2119807 is an equidigital number, since it uses as much as digits as its factorization.

2119807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26912.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2119807 is about 1455.9556998755. The cubic root of 2119807 is about 128.4592673210.

It can be divided in two parts, 2119 and 807, that added together give a triangular number (2926 = T₇₆).

The spelling of 2119807 in words is "two million, one hundred nineteen thousand, eight hundred seven".