2739729 has 8 divisors (see below), whose sum is σ = 3722112. Its totient is φ = 1791920.

The previous prime is 2739721. The next prime is 2739731. The reversal of 2739729 is 9279372.

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

It is a cyclic number.

It is not a de Polignac number, because 2739729 - 2³ = 2739721 is a prime.

It is a super-2 number, since 2×2739729² = 15012229986882, which contains 22 as substring.

2739729 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2739721) 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, 8457 + ... + 8774.

It is an arithmetic number, because the mean of its divisors is an integer number (465264).

2^2739729 is an apocalyptic number.

It is an amenable number.

2739729 is a deficient number, since it is larger than the sum of its proper divisors (982383).

2739729 is a wasteful number, since it uses less digits than its factorization.

2739729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17287.

The product of its digits is 47628, while the sum is 39.

The square root of 2739729 is about 1655.2126751569. The cubic root of 2739729 is about 139.9273262273.

The spelling of 2739729 in words is "two million, seven hundred thirty-nine thousand, seven hundred twenty-nine".