3847538 has 18 divisors (see below), whose sum is σ = 6175629. Its totient is φ = 1797552.

The previous prime is 3847499. The next prime is 3847549. The reversal of 3847538 is 8357483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3829849 + 17689 = 1957^2 + 133^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1387.

It is a super-2 number, since 2×3847538² = 29607097322888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 52670 + ... + 52742.

Almost surely, 2^3847538 is an apocalyptic number.

3847538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3847538 is a deficient number, since it is larger than the sum of its proper divisors (2328091).

3847538 is an equidigital number, since it uses as much as digits as its factorization.

3847538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 94 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 3847538 is about 1961.5142110115. The cubic root of 3847538 is about 156.6971048952.

The spelling of 3847538 in words is "three million, eight hundred forty-seven thousand, five hundred thirty-eight".