2729345 has 8 divisors (see below), whose sum is σ = 3284520. Its totient is φ = 2177280.

The previous prime is 2729327. The next prime is 2729347. The reversal of 2729345 is 5439272.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 78961 + 2650384 = 281^2 + 1628^2 .

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

It is not a de Polignac number, because 2729345 - 2¹⁰ = 2728321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729347) 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, 2201 + ... + 3209.

It is an arithmetic number, because the mean of its divisors is an integer number (410565).

2^2729345 is an apocalyptic number.

It is an amenable number.

2729345 is a deficient number, since it is larger than the sum of its proper divisors (555175).

2729345 is a wasteful number, since it uses less digits than its factorization.

2729345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555.

The product of its digits is 15120, while the sum is 32.

The square root of 2729345 is about 1652.0729402784. The cubic root of 2729345 is about 139.7503202854.

The spelling of 2729345 in words is "two million, seven hundred twenty-nine thousand, three hundred forty-five".