2749213 has 6 divisors (see below), whose sum is σ = 2874494. Its totient is φ = 2629176.

The previous prime is 2749207. The next prime is 2749231. The reversal of 2749213 is 3129472.

It can be written as a sum of positive squares in only one way, i.e., 2304324 + 444889 = 1518^2 + 667^2 .

It is not a de Polignac number, because 2749213 - 2¹³ = 2741021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2070 + ... + 3127.

2^2749213 is an apocalyptic number.

2749213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2749213 is a deficient number, since it is larger than the sum of its proper divisors (125281).

2749213 is an equidigital number, since it uses as much as digits as its factorization.

2749213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243 (or 5220 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 2749213 is about 1658.0750887701. The cubic root of 2749213 is about 140.0886003791.

The spelling of 2749213 in words is "two million, seven hundred forty-nine thousand, two hundred thirteen".