2739257 has 4 divisors (see below), whose sum is σ = 2748900. Its totient is φ = 2729616.

The previous prime is 2739241. The next prime is 2739259. The reversal of 2739257 is 7529372.

2739257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2493241 + 246016 = 1579^2 + 496^2 .

It is a cyclic number.

It is not a de Polignac number, because 2739257 - 2⁴ = 2739241 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁹ + 7 + 3³ + 9 + 2²¹ + 5³ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2739259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4382 + ... + 4967.

It is an arithmetic number, because the mean of its divisors is an integer number (687225).

2^2739257 is an apocalyptic number.

It is an amenable number.

2739257 is a deficient number, since it is larger than the sum of its proper divisors (9643).

2739257 is an equidigital number, since it uses as much as digits as its factorization.

2739257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642.

The product of its digits is 26460, while the sum is 35.

The square root of 2739257 is about 1655.0700891503. The cubic root of 2739257 is about 139.9192902146.

The spelling of 2739257 in words is "two million, seven hundred thirty-nine thousand, two hundred fifty-seven".