2720099 has 4 divisors (see below), whose sum is σ = 2723400. Its totient is φ = 2716800.

The previous prime is 2720089. The next prime is 2720101. The reversal of 2720099 is 9900272.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2720099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720009) 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, 752 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (680850).

2^2720099 is an apocalyptic number.

2720099 is a deficient number, since it is larger than the sum of its proper divisors (3301).

2720099 is a wasteful number, since it uses less digits than its factorization.

2720099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 2720099 is about 1649.2722637576. The cubic root of 2720099 is about 139.5923344806.

The spelling of 2720099 in words is "two million, seven hundred twenty thousand, ninety-nine".