2729999 has 4 divisors (see below), whose sum is σ = 2750064. Its totient is φ = 2709936.

The previous prime is 2729983. The next prime is 2730001. The reversal of 2729999 is 9999272.

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

It is a cyclic number.

It is not a de Polignac number, because 2729999 - 2⁴ = 2729983 is a prime.

It is a Duffinian number.

2729999 is a modest number, since divided by 9999 gives 272 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729959) 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, 9827 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (687516).

2^2729999 is an apocalyptic number.

2729999 is a deficient number, since it is larger than the sum of its proper divisors (20065).

2729999 is a wasteful number, since it uses less digits than its factorization.

2729999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20064.

The product of its digits is 183708, while the sum is 47.

The square root of 2729999 is about 1652.2708615720. The cubic root of 2729999 is about 139.7614816215.

The spelling of 2729999 in words is "two million, seven hundred twenty-nine thousand, nine hundred ninety-nine".