2751389 has 4 divisors (see below), whose sum is σ = 2803356. Its totient is φ = 2699424.

The previous prime is 2751383. The next prime is 2751391. The reversal of 2751389 is 9831572.

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 1612900 + 1138489 = 1270^2 + 1067^2 .

It is a cyclic number.

It is not a de Polignac number, because 2751389 - 2¹² = 2747293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2751383) 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, 25904 + ... + 26009.

It is an arithmetic number, because the mean of its divisors is an integer number (700839).

2^2751389 is an apocalyptic number.

It is an amenable number.

2751389 is a deficient number, since it is larger than the sum of its proper divisors (51967).

2751389 is an equidigital number, since it uses as much as digits as its factorization.

2751389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51966.

The product of its digits is 15120, while the sum is 35.

The square root of 2751389 is about 1658.7311415657. The cubic root of 2751389 is about 140.1255506391.

The spelling of 2751389 in words is "two million, seven hundred fifty-one thousand, three hundred eighty-nine".