3975849 has 12 divisors (see below), whose sum is σ = 5992896. Its totient is φ = 2535192.

The previous prime is 3975827. The next prime is 3975857. The reversal of 3975849 is 9485793.

It is not a de Polignac number, because 3975849 - 2⁷ = 3975721 is a prime.

It is a d-powerful number, because it can be written as 3 + 9 + 7⁷ + 5 + 8⁷ + 4¹⁰ + 9⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9397 + ... + 9810.

It is an arithmetic number, because the mean of its divisors is an integer number (499408).

Almost surely, 2^3975849 is an apocalyptic number.

It is an amenable number.

3975849 is a deficient number, since it is larger than the sum of its proper divisors (2017047).

3975849 is a wasteful number, since it uses less digits than its factorization.

3975849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19236 (or 19233 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3975849 is about 1993.9531087766. The cubic root of 3975849 is about 158.4199823658.

The spelling of 3975849 in words is "three million, nine hundred seventy-five thousand, eight hundred forty-nine".