3863872 has 14 divisors (see below), whose sum is σ = 7667498. Its totient is φ = 1931904.

The previous prime is 3863863. The next prime is 3863887. The reversal of 3863872 is 2783683.

3863872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3474496 + 389376 = 1864^2 + 624^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30123 + ... + 30250.

Almost surely, 2^3863872 is an apocalyptic number.

3863872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3863872 is a deficient number, since it is larger than the sum of its proper divisors (3803626).

3863872 is an equidigital number, since it uses as much as digits as its factorization.

3863872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60385 (or 60375 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 3863872 is about 1965.6734215022. The cubic root of 3863872 is about 156.9185345544.

The spelling of 3863872 in words is "three million, eight hundred sixty-three thousand, eight hundred seventy-two".