3906541 has 2 divisors, whose sum is σ = 3906542. Its totient is φ = 3906540.

The previous prime is 3906493. The next prime is 3906547. The reversal of 3906541 is 1456093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3437316 + 469225 = 1854^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 3906541 - 2¹¹ = 3904493 is a prime.

It is a super-2 number, since 2×3906541² = 30522125169362, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3906547) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1953270 + 1953271.

It is an arithmetic number, because the mean of its divisors is an integer number (1953271).

Almost surely, 2^3906541 is an apocalyptic number.

It is an amenable number.

3906541 is a deficient number, since it is larger than the sum of its proper divisors (1).

3906541 is an equidigital number, since it uses as much as digits as its factorization.

3906541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3906541 is about 1976.4971540582. The cubic root of 3906541 is about 157.4940419347.

The spelling of 3906541 in words is "three million, nine hundred six thousand, five hundred forty-one".