3898872 has 24 divisors (see below), whose sum is σ = 10559640. Its totient is φ = 1299600.

The previous prime is 3898871. The next prime is 3898879. The reversal of 3898872 is 2788983.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898871) 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, 27004 + ... + 27147.

It is an arithmetic number, because the mean of its divisors is an integer number (439985).

Almost surely, 2^3898872 is an apocalyptic number.

It is an amenable number.

3898872 is an abundant number, since it is smaller than the sum of its proper divisors (6660768).

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

3898872 is a wasteful number, since it uses less digits than its factorization.

3898872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54163 (or 54156 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 3898872 is about 1974.5561526581. The cubic root of 3898872 is about 157.3909146382.

It can be divided in two parts, 38988 and 72, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 3898872 in words is "three million, eight hundred ninety-eight thousand, eight hundred seventy-two".