2809098 has 12 divisors (see below), whose sum is σ = 6086418. Its totient is φ = 936360.

The previous prime is 2809091. The next prime is 2809099. The reversal of 2809098 is 8909082.

2809098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1447209 + 1361889 = 1203^2 + 1167^2 .

It is not an unprimeable number, because it can be changed into a prime (2809091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78013 + ... + 78048.

2^2809098 is an apocalyptic number.

2809098 is an abundant number, since it is smaller than the sum of its proper divisors (3277320).

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

2809098 is a wasteful number, since it uses less digits than its factorization.

2809098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156069 (or 156066 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 2809098 is about 1676.0363957862. The cubic root of 2809098 is about 141.0984675100.

The spelling of 2809098 in words is "two million, eight hundred nine thousand, ninety-eight".