2749867 has 4 divisors (see below), whose sum is σ = 2844720. Its totient is φ = 2655016.

The previous prime is 2749849. The next prime is 2749883. The reversal of 2749867 is 7689472.

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

It is a cyclic number.

It is not a de Polignac number, because 2749867 - 2¹¹ = 2747819 is a prime.

It is a Duffinian number.

2749867 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749847) 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, 47383 + ... + 47440.

It is an arithmetic number, because the mean of its divisors is an integer number (711180).

2^2749867 is an apocalyptic number.

2749867 is a deficient number, since it is larger than the sum of its proper divisors (94853).

2749867 is an equidigital number, since it uses as much as digits as its factorization.

2749867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94852.

The product of its digits is 169344, while the sum is 43.

The square root of 2749867 is about 1658.2722936840. The cubic root of 2749867 is about 140.0997078828.

It can be divided in two parts, 27 and 49867, that added together give a palindrome (49894).

The spelling of 2749867 in words is "two million, seven hundred forty-nine thousand, eight hundred sixty-seven".