3520871 has 4 divisors (see below), whose sum is σ = 3706200. Its totient is φ = 3335544.

The previous prime is 3520841. The next prime is 3520873. The reversal of 3520871 is 1780253.

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 3520871 - 2¹⁸ = 3258727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3520871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520873) 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, 92636 + ... + 92673.

It is an arithmetic number, because the mean of its divisors is an integer number (926550).

Almost surely, 2^3520871 is an apocalyptic number.

3520871 is a deficient number, since it is larger than the sum of its proper divisors (185329).

3520871 is a wasteful number, since it uses less digits than its factorization.

3520871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185328.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 3520871 is about 1876.3984118518. The cubic root of 3520871 is about 152.1306442578.

The spelling of 3520871 in words is "three million, five hundred twenty thousand, eight hundred seventy-one".