3103872 has 64 divisors (see below), whose sum is σ = 8445600. Its totient is φ = 1009664.

The previous prime is 3103871. The next prime is 3103879. The reversal of 3103872 is 2783013.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (3103871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22588 + ... + 22724.

Almost surely, 2^3103872 is an apocalyptic number.

3103872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3103872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4222800).

3103872 is an abundant number, since it is smaller than the sum of its proper divisors (5341728).

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

3103872 is a wasteful number, since it uses less digits than its factorization.

3103872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 3103872 is about 1761.7809171404. The cubic root of 3103872 is about 145.8706554453.

Adding to 3103872 its reverse (2783013), we get a palindrome (5886885).

The spelling of 3103872 in words is "three million, one hundred three thousand, eight hundred seventy-two".