2498609 has 4 divisors (see below), whose sum is σ = 2645604. Its totient is φ = 2351616.

The previous prime is 2498603. The next prime is 2498641. The reversal of 2498609 is 9068942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9068942 = 2 ⋅4534471.

It can be written as a sum of positive squares in 2 ways, for example, as 1882384 + 616225 = 1372^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 2498609 - 2⁴ = 2498593 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 (2498603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73472 + ... + 73505.

It is an arithmetic number, because the mean of its divisors is an integer number (661401).

2^2498609 is an apocalyptic number.

It is an amenable number.

2498609 is a deficient number, since it is larger than the sum of its proper divisors (146995).

2498609 is a wasteful number, since it uses less digits than its factorization.

2498609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146994.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2498609 is about 1580.6988960583. The cubic root of 2498609 is about 135.6957044604.

The spelling of 2498609 in words is "two million, four hundred ninety-eight thousand, six hundred nine".