3905071 has 4 divisors (see below), whose sum is σ = 3960144. Its totient is φ = 3850000.

The previous prime is 3905059. The next prime is 3905107. The reversal of 3905071 is 1705093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3905071 - 2¹⁷ = 3773999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27430 + ... + 27571.

It is an arithmetic number, because the mean of its divisors is an integer number (990036).

Almost surely, 2^3905071 is an apocalyptic number.

3905071 is a deficient number, since it is larger than the sum of its proper divisors (55073).

3905071 is an equidigital number, since it uses as much as digits as its factorization.

3905071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55072.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 3905071 is about 1976.1252490670. The cubic root of 3905071 is about 157.4742848754.

The spelling of 3905071 in words is "three million, nine hundred five thousand, seventy-one".