2749279 has 8 divisors (see below), whose sum is σ = 2999360. Its totient is φ = 2504736.

The previous prime is 2749277. The next prime is 2749283. The reversal of 2749279 is 9729472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2749279 - 2¹ = 2749277 is a prime.

It is a super-3 number, since 3×2749279³ = 62341564802440333917, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 2365.

It is an arithmetic number, because the mean of its divisors is an integer number (374920).

2^2749279 is an apocalyptic number.

2749279 is a deficient number, since it is larger than the sum of its proper divisors (250081).

2749279 is a wasteful number, since it uses less digits than its factorization.

2749279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769.

The product of its digits is 63504, while the sum is 40.

The square root of 2749279 is about 1658.0949912475. The cubic root of 2749279 is about 140.0897213998.

The spelling of 2749279 in words is "two million, seven hundred forty-nine thousand, two hundred seventy-nine".