3977846 has 16 divisors (see below), whose sum is σ = 6130080. Its totient is φ = 1935360.

The previous prime is 3977819. The next prime is 3977849. The reversal of 3977846 is 6487793.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3977797 and 3977806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977849) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15350 + ... + 15606.

It is an arithmetic number, because the mean of its divisors is an integer number (383130).

Almost surely, 2^3977846 is an apocalyptic number.

3977846 is a deficient number, since it is larger than the sum of its proper divisors (2152234).

3977846 is a wasteful number, since it uses less digits than its factorization.

3977846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its digits is 254016, while the sum is 44.

The square root of 3977846 is about 1994.4538099440. The cubic root of 3977846 is about 158.4465017961.

The spelling of 3977846 in words is "three million, nine hundred seventy-seven thousand, eight hundred forty-six".