3899020 has 24 divisors (see below), whose sum is σ = 8253504. Its totient is φ = 1547136.

The previous prime is 3899011. The next prime is 3899033. The reversal of 3899020 is 209983.

3899020 = 96² + 97² + ... + 232².

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (343896).

Almost surely, 2^3899020 is an apocalyptic number.

It is an amenable number.

3899020 is an abundant number, since it is smaller than the sum of its proper divisors (4354484).

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

3899020 is a wasteful number, since it uses less digits than its factorization.

3899020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 3899020 is about 1974.5936290792. The cubic root of 3899020 is about 157.3929061168.

It can be divided in two parts, 389 and 9020, that added together give a square (9409 = 97²).

The spelling of 3899020 in words is "three million, eight hundred ninety-nine thousand, twenty".