3905471 has 2 divisors, whose sum is σ = 3905472. Its totient is φ = 3905470.

The previous prime is 3905467. The next prime is 3905477. The reversal of 3905471 is 1745093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3905471 - 2² = 3905467 is a prime.

It is a super-3 number, since 3×3905471³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3905477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1952735 + 1952736.

It is an arithmetic number, because the mean of its divisors is an integer number (1952736).

Almost surely, 2^3905471 is an apocalyptic number.

3905471 is a deficient number, since it is larger than the sum of its proper divisors (1).

3905471 is an equidigital number, since it uses as much as digits as its factorization.

3905471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 3905471 is about 1976.2264546352. The cubic root of 3905471 is about 157.4796614369.

The spelling of 3905471 in words is "three million, nine hundred five thousand, four hundred seventy-one".