3848945 has 4 divisors (see below), whose sum is σ = 4618740. Its totient is φ = 3079152.

The previous prime is 3848941. The next prime is 3848947. The reversal of 3848945 is 5498483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5498483 = 47 ⋅116989.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 3265249 = 764^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 3848945 - 2² = 3848941 is a prime.

It is a super-2 number, since 2×3848945² = 29628755226050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3¹³ + 8 + 4² + 8⁵ + 9⁴ + 4⁹ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (3848941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384890 + ... + 384899.

It is an arithmetic number, because the mean of its divisors is an integer number (1154685).

Almost surely, 2^3848945 is an apocalyptic number.

It is an amenable number.

3848945 is a deficient number, since it is larger than the sum of its proper divisors (769795).

3848945 is an equidigital number, since it uses as much as digits as its factorization.

3848945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769794.

The product of its digits is 138240, while the sum is 41.

The square root of 3848945 is about 1961.8728297216. The cubic root of 3848945 is about 156.7162033383.

The spelling of 3848945 in words is "three million, eight hundred forty-eight thousand, nine hundred forty-five".