2739999 has 8 divisors (see below), whose sum is σ = 3665200. Its totient is φ = 1820736.

The previous prime is 2739991. The next prime is 2740027. The reversal of 2739999 is 9999372.

It is a happy number.

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

It is not a de Polignac number, because 2739999 - 2³ = 2739991 is a prime.

It is a Duffinian number.

2739999 is a modest number, since divided by 9999 gives 273 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2739991) 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, 262 + ... + 2355.

It is an arithmetic number, because the mean of its divisors is an integer number (458150).

2^2739999 is an apocalyptic number.

2739999 is a deficient number, since it is larger than the sum of its proper divisors (925201).

2739999 is a wasteful number, since it uses less digits than its factorization.

2739999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969.

The product of its digits is 275562, while the sum is 48.

The square root of 2739999 is about 1655.2942336636. The cubic root of 2739999 is about 139.9319226840.

The spelling of 2739999 in words is "two million, seven hundred thirty-nine thousand, nine hundred ninety-nine".