3899898 has 12 divisors (see below), whose sum is σ = 8449818. Its totient is φ = 1299960.

The previous prime is 3899887. The next prime is 3899927. The reversal of 3899898 is 8989983.

It can be written as a sum of positive squares in only one way, i.e., 2913849 + 986049 = 1707^2 + 993^2 .

It is a Curzon number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 108313 + ... + 108348.

Almost surely, 2^3899898 is an apocalyptic number.

3899898 is an abundant number, since it is smaller than the sum of its proper divisors (4549920).

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

3899898 is a wasteful number, since it uses less digits than its factorization.

3899898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216669 (or 216666 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 3899898 is about 1974.8159407904. The cubic root of 3899898 is about 157.4047193929.

The spelling of 3899898 in words is "three million, eight hundred ninety-nine thousand, eight hundred ninety-eight".