2729147 has 4 divisors (see below), whose sum is σ = 2817216. Its totient is φ = 2641080.

The previous prime is 2729143. The next prime is 2729159. The reversal of 2729147 is 7419272.

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 2729147 - 2² = 2729143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2729143) 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, 43988 + ... + 44049.

It is an arithmetic number, because the mean of its divisors is an integer number (704304).

2^2729147 is an apocalyptic number.

2729147 is a deficient number, since it is larger than the sum of its proper divisors (88069).

2729147 is an equidigital number, since it uses as much as digits as its factorization.

2729147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88068.

The product of its digits is 7056, while the sum is 32.

The square root of 2729147 is about 1652.0130144766. The cubic root of 2729147 is about 139.7469408137.

The spelling of 2729147 in words is "two million, seven hundred twenty-nine thousand, one hundred forty-seven".