2236729 has 4 divisors (see below), whose sum is σ = 2440080. Its totient is φ = 2033380.

The previous prime is 2236711. The next prime is 2236733. The reversal of 2236729 is 9276322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2236729 - 2⁵ = 2236697 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 3⁴ + 6³ + 7 + 2²¹ + 9 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2236729.

It is not an unprimeable number, because it can be changed into a prime (2236709) 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, 101659 + ... + 101680.

It is an arithmetic number, because the mean of its divisors is an integer number (610020).

2^2236729 is an apocalyptic number.

It is an amenable number.

2236729 is a deficient number, since it is larger than the sum of its proper divisors (203351).

2236729 is a wasteful number, since it uses less digits than its factorization.

2236729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203350.

The product of its digits is 9072, while the sum is 31.

The square root of 2236729 is about 1495.5697910830. The cubic root of 2236729 is about 130.7789329418.

The spelling of 2236729 in words is "two million, two hundred thirty-six thousand, seven hundred twenty-nine".