2709481 has 2 divisors, whose sum is σ = 2709482. Its totient is φ = 2709480.

The previous prime is 2709479. The next prime is 2709491. The reversal of 2709481 is 1849072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 19881 = 1640^2 + 141^2 .

It is a cyclic number.

It is not a de Polignac number, because 2709481 - 2¹ = 2709479 is a prime.

It is a super-2 number, since 2×2709481² = 14682574578722, which contains 22 as substring.

Together with 2709479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2709491) 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 as a sum of consecutive naturals, namely, 1354740 + 1354741.

It is an arithmetic number, because the mean of its divisors is an integer number (1354741).

2^2709481 is an apocalyptic number.

It is an amenable number.

2709481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2709481 is an equidigital number, since it uses as much as digits as its factorization.

2709481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2709481 is about 1646.0501207436. The cubic root of 2709481 is about 139.4104631350.

The spelling of 2709481 in words is "two million, seven hundred nine thousand, four hundred eighty-one".