2867729 has 4 divisors (see below), whose sum is σ = 2882484. Its totient is φ = 2852976.

The previous prime is 2867719. The next prime is 2867737. The reversal of 2867729 is 9277682.

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 1817104 + 1050625 = 1348^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 2867729 - 2¹⁶ = 2802193 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 8⁴ + 6⁸ + 7⁵ + 7⁶ + 2²⁰ + 9³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2867719) 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, 7082 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (720621).

2^2867729 is an apocalyptic number.

It is an amenable number.

2867729 is a deficient number, since it is larger than the sum of its proper divisors (14755).

2867729 is a wasteful number, since it uses less digits than its factorization.

2867729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14754.

The product of its digits is 84672, while the sum is 41.

The square root of 2867729 is about 1693.4370375069. The cubic root of 2867729 is about 142.0733767433.

The spelling of 2867729 in words is "two million, eight hundred sixty-seven thousand, seven hundred twenty-nine".