3809898 has 12 divisors (see below), whose sum is σ = 8254818. Its totient is φ = 1269960.

The previous prime is 3809891. The next prime is 3809903. The reversal of 3809898 is 8989083.

It can be written as a sum of positive squares in only one way, i.e., 3337929 + 471969 = 1827^2 + 687^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3809891) 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, 105813 + ... + 105848.

Almost surely, 2^3809898 is an apocalyptic number.

3809898 is an abundant number, since it is smaller than the sum of its proper divisors (4444920).

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

3809898 is a wasteful number, since it uses less digits than its factorization.

3809898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211669 (or 211666 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 3809898 is about 1951.8960013279. The cubic root of 3809898 is about 156.1844465281.

The spelling of 3809898 in words is "three million, eight hundred nine thousand, eight hundred ninety-eight".