2729643 has 24 divisors (see below), whose sum is σ = 4377600. Its totient is φ = 1506960.

The previous prime is 2729633. The next prime is 2729651. The reversal of 2729643 is 3469272.

It is not a de Polignac number, because 2729643 - 2¹³ = 2721451 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 7³ + 2¹⁹ + 9² + 6⁸ + 4⁵ + 3 .

It is not an unprimeable number, because it can be changed into a prime (2729633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4258 + ... + 4856.

It is an arithmetic number, because the mean of its divisors is an integer number (182400).

2^2729643 is an apocalyptic number.

2729643 is a deficient number, since it is larger than the sum of its proper divisors (1647957).

2729643 is a wasteful number, since it uses less digits than its factorization.

2729643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 640 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 2729643 is about 1652.1631275392. The cubic root of 2729643 is about 139.7554062529.

The spelling of 2729643 in words is "two million, seven hundred twenty-nine thousand, six hundred forty-three".