3520775 has 6 divisors (see below), whose sum is σ = 4365792. Its totient is φ = 2816600.

The previous prime is 3520739. The next prime is 3520787. The reversal of 3520775 is 5770253.

It is not a de Polignac number, because 3520775 - 2⁸ = 3520519 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70391 + ... + 70440.

It is an arithmetic number, because the mean of its divisors is an integer number (727632).

Almost surely, 2^3520775 is an apocalyptic number.

3520775 is a deficient number, since it is larger than the sum of its proper divisors (845017).

3520775 is a wasteful number, since it uses less digits than its factorization.

3520775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140841 (or 140836 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 29.

The square root of 3520775 is about 1876.3728307562. The cubic root of 3520775 is about 152.1292615815.

The spelling of 3520775 in words is "three million, five hundred twenty thousand, seven hundred seventy-five".