2913729 has 24 divisors (see below), whose sum is σ = 4813632. Its totient is φ = 1535040.

The previous prime is 2913727. The next prime is 2913733. The reversal of 2913729 is 9273192.

2913729 = 132² + 133² + ... + 222².

2913729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2913729 - 2¹ = 2913727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2913729.

It is not an unprimeable number, because it can be changed into a prime (2913727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3139 + ... + 3959.

It is an arithmetic number, because the mean of its divisors is an integer number (200568).

2^2913729 is an apocalyptic number.

It is an amenable number.

2913729 is a deficient number, since it is larger than the sum of its proper divisors (1899903).

2913729 is a wasteful number, since it uses less digits than its factorization.

2913729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 844 counting only the distinct ones).

The product of its digits is 6804, while the sum is 33.

The square root of 2913729 is about 1706.9648502532. The cubic root of 2913729 is about 142.8289966930.

The spelling of 2913729 in words is "two million, nine hundred thirteen thousand, seven hundred twenty-nine".