3898520 has 16 divisors (see below), whose sum is σ = 8771760. Its totient is φ = 1559392.

The previous prime is 3898513. The next prime is 3898537. The reversal of 3898520 is 258983.

It is a nialpdrome in base 13.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 48692 + ... + 48771.

It is an arithmetic number, because the mean of its divisors is an integer number (548235).

Almost surely, 2^3898520 is an apocalyptic number.

It is an amenable number.

3898520 is an abundant number, since it is smaller than the sum of its proper divisors (4873240).

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

3898520 is a wasteful number, since it uses less digits than its factorization.

3898520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97474 (or 97470 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 3898520 is about 1974.4670166908. The cubic root of 3898520 is about 157.3861779460.

The spelling of 3898520 in words is "three million, eight hundred ninety-eight thousand, five hundred twenty".