2609898 has 16 divisors (see below), whose sum is σ = 5243616. Its totient is φ = 866000.

The previous prime is 2609813. The next prime is 2609899. The reversal of 2609898 is 8989062.

It is a super-3 number, since 3×2609898³ = 53332489736586776376, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609899) 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 in 7 ways as a sum of consecutive naturals, for example, 640 + ... + 2372.

It is an arithmetic number, because the mean of its divisors is an integer number (327726).

2^2609898 is an apocalyptic number.

2609898 is an abundant number, since it is smaller than the sum of its proper divisors (2633718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2609898 is a wasteful number, since it uses less digits than its factorization.

2609898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 2609898 is about 1615.5178736244. The cubic root of 2609898 is about 137.6811584612.

The spelling of 2609898 in words is "two million, six hundred nine thousand, eight hundred ninety-eight".