3941505 has 12 divisors (see below), whose sum is σ = 6832020. Its totient is φ = 2102112.

The previous prime is 3941473. The next prime is 3941507. The reversal of 3941505 is 5051493.

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 2702736 = 1113^2 + 1644^2 .

It is not a de Polignac number, because 3941505 - 2⁵ = 3941473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3941507) 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, 43750 + ... + 43839.

It is an arithmetic number, because the mean of its divisors is an integer number (569335).

Almost surely, 2^3941505 is an apocalyptic number.

It is an amenable number.

3941505 is a deficient number, since it is larger than the sum of its proper divisors (2890515).

3941505 is a wasteful number, since it uses less digits than its factorization.

3941505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87600 (or 87597 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 3941505 is about 1985.3223919555. The cubic root of 3941505 is about 157.9625104666.

Adding to 3941505 its reverse (5051493), we get a palindrome (8992998).

The spelling of 3941505 in words is "three million, nine hundred forty-one thousand, five hundred five".