2497409 has 6 divisors (see below), whose sum is σ = 2611266. Its totient is φ = 2388320.

The previous prime is 2497381. The next prime is 2497421. The reversal of 2497409 is 9047942.

It can be written as a sum of positive squares in only one way, i.e., 2166784 + 330625 = 1472^2 + 575^2 .

It is not a de Polignac number, because 2497409 - 2²⁰ = 1448833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2497489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1832 + ... + 2889.

It is an arithmetic number, because the mean of its divisors is an integer number (435211).

2^2497409 is an apocalyptic number.

It is an amenable number.

2497409 is a deficient number, since it is larger than the sum of its proper divisors (113857).

2497409 is an equidigital number, since it uses as much as digits as its factorization.

2497409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767 (or 4744 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2497409 is about 1580.3192715398. The cubic root of 2497409 is about 135.6739775822.

The spelling of 2497409 in words is "two million, four hundred ninety-seven thousand, four hundred nine".