2780099 has 8 divisors (see below), whose sum is σ = 3344640. Its totient is φ = 2257416.

The previous prime is 2780083. The next prime is 2780101. The reversal of 2780099 is 9900872.

2780099 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2780099 - 2⁴ = 2780083 is a prime.

It is a Duffinian number.

2780099 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (2780039) 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, 10319 + ... + 10584.

It is an arithmetic number, because the mean of its divisors is an integer number (418080).

2^2780099 is an apocalyptic number.

2780099 is a deficient number, since it is larger than the sum of its proper divisors (564541).

2780099 is a wasteful number, since it uses less digits than its factorization.

2780099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20929.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 2780099 is about 1667.3628879161. The cubic root of 2780099 is about 140.6112558749.

The spelling of 2780099 in words is "two million, seven hundred eighty thousand, ninety-nine".