3971055 has 32 divisors (see below), whose sum is σ = 7112448. Its totient is φ = 1875200.

The previous prime is 3971053. The next prime is 3971063. The reversal of 3971055 is 5501793.

It is a happy number.

It is not a de Polignac number, because 3971055 - 2¹ = 3971053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6472 + ... + 7058.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

Almost surely, 2^3971055 is an apocalyptic number.

3971055 is a deficient number, since it is larger than the sum of its proper divisors (3141393).

3971055 is a wasteful number, since it uses less digits than its factorization.

3971055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 3971055 is about 1992.7506115919. The cubic root of 3971055 is about 158.3562835307.

The spelling of 3971055 in words is "three million, nine hundred seventy-one thousand, fifty-five".