3900571 has 4 divisors (see below), whose sum is σ = 3906144. Its totient is φ = 3895000.

The previous prime is 3900569. The next prime is 3900581. The reversal of 3900571 is 1750093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1750093 = 23 ⋅76091.

It is a cyclic number.

It is not a de Polignac number, because 3900571 - 2¹ = 3900569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3900581) 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, 1555 + ... + 3196.

It is an arithmetic number, because the mean of its divisors is an integer number (976536).

Almost surely, 2^3900571 is an apocalyptic number.

3900571 is a deficient number, since it is larger than the sum of its proper divisors (5573).

3900571 is an equidigital number, since it uses as much as digits as its factorization.

3900571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572.

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

The square root of 3900571 is about 1974.9863290666. The cubic root of 3900571 is about 157.4137732437.

The spelling of 3900571 in words is "three million, nine hundred thousand, five hundred seventy-one".