2736289 has 4 divisors (see below), whose sum is σ = 2740756. Its totient is φ = 2731824.

The previous prime is 2736263. The next prime is 2736313. The reversal of 2736289 is 9826372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2235025 + 501264 = 1495^2 + 708^2 .

It is a cyclic number.

It is not a de Polignac number, because 2736289 - 2⁵ = 2736257 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 7³ + 3¹² + 6⁸ + 2¹⁹ + 8 + 9² .

It is a Duffinian number.

2736289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2736229) 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, 1134 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (685189).

2^2736289 is an apocalyptic number.

It is an amenable number.

2736289 is a deficient number, since it is larger than the sum of its proper divisors (4467).

2736289 is an equidigital number, since it uses as much as digits as its factorization.

2736289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4466.

The product of its digits is 36288, while the sum is 37.

The square root of 2736289 is about 1654.1732073758. The cubic root of 2736289 is about 139.8687375124.

It can be divided in two parts, 2736 and 289, that added together give a square (3025 = 55²).

The spelling of 2736289 in words is "two million, seven hundred thirty-six thousand, two hundred eighty-nine".