2179099 has 4 divisors (see below), whose sum is σ = 2346736. Its totient is φ = 2011464.

The previous prime is 2179097. The next prime is 2179139. The reversal of 2179099 is 9909712.

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

It is not a de Polignac number, because 2179099 - 2¹ = 2179097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2179097) 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 in 3 ways as a sum of consecutive naturals, for example, 83799 + ... + 83824.

It is an arithmetic number, because the mean of its divisors is an integer number (586684).

2^2179099 is an apocalyptic number.

2179099 is a deficient number, since it is larger than the sum of its proper divisors (167637).

2179099 is a wasteful number, since it uses less digits than its factorization.

2179099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167636.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 2179099 is about 1476.1771573900. The cubic root of 2179099 is about 129.6459597638.

It can be divided in two parts, 217 and 9099, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 2179099 in words is "two million, one hundred seventy-nine thousand, ninety-nine".