3861248 has 18 divisors (see below), whose sum is σ = 7707924. Its totient is φ = 1930496.

The previous prime is 3861241. The next prime is 3861251. The reversal of 3861248 is 8421683.

It is a super-2 number, since 2×3861248² = 29818472235008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (3861241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7286 + ... + 7797.

It is an arithmetic number, because the mean of its divisors is an integer number (428218).

Almost surely, 2^3861248 is an apocalyptic number.

It is an amenable number.

3861248 is a deficient number, since it is larger than the sum of its proper divisors (3846676).

3861248 is an equidigital number, since it uses as much as digits as its factorization.

3861248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15099 (or 15085 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 3861248 is about 1965.0058524086. The cubic root of 3861248 is about 156.8830047819.

The spelling of 3861248 in words is "three million, eight hundred sixty-one thousand, two hundred forty-eight".