2099479 has 2 divisors, whose sum is σ = 2099480. Its totient is φ = 2099478.

The previous prime is 2099477. The next prime is 2099497. The reversal of 2099479 is 9749902.

Together with next prime (2099497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2099479 - 2¹ = 2099477 is a prime.

Together with 2099477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2099477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049739 + 1049740.

It is an arithmetic number, because the mean of its divisors is an integer number (1049740).

2^2099479 is an apocalyptic number.

2099479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2099479 is an equidigital number, since it uses as much as digits as its factorization.

2099479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 2099479 is about 1448.9579013898. The cubic root of 2099479 is about 128.0473254364.

It can be divided in two parts, 20 and 99479, that added together give a palindrome (99499).

The spelling of 2099479 in words is "two million, ninety-nine thousand, four hundred seventy-nine".