2750739 has 4 divisors (see below), whose sum is σ = 3667656. Its totient is φ = 1833824.

The previous prime is 2750729. The next prime is 2750743. The reversal of 2750739 is 9370572.

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 2750739 - 2⁵ = 2750707 is a prime.

It is a super-2 number, since 2×2750739² = 15133130092242, which contains 22 as substring.

It is a D-number.

2750739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2750729) 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, 458454 + ... + 458459.

It is an arithmetic number, because the mean of its divisors is an integer number (916914).

2^2750739 is an apocalyptic number.

2750739 is a deficient number, since it is larger than the sum of its proper divisors (916917).

2750739 is an equidigital number, since it uses as much as digits as its factorization.

2750739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916916.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 2750739 is about 1658.5351970941. The cubic root of 2750739 is about 140.1145151486.

The spelling of 2750739 in words is "two million, seven hundred fifty thousand, seven hundred thirty-nine".