2709491 has 2 divisors, whose sum is σ = 2709492. Its totient is φ = 2709490.

The previous prime is 2709481. The next prime is 2709517. The reversal of 2709491 is 1949072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2709491 - 2¹⁰ = 2708467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2709481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1354745 + 1354746.

It is an arithmetic number, because the mean of its divisors is an integer number (1354746).

2^2709491 is an apocalyptic number.

2709491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2709491 is an equidigital number, since it uses as much as digits as its factorization.

2709491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 2709491 is about 1646.0531583154. The cubic root of 2709491 is about 139.4106346442.

The spelling of 2709491 in words is "two million, seven hundred nine thousand, four hundred ninety-one".