3521887 has 4 divisors (see below), whose sum is σ = 3581640. Its totient is φ = 3462136.

The previous prime is 3521867. The next prime is 3521909. The reversal of 3521887 is 7881253.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3521887 is a prime.

It is a super-3 number, since 3×3521887³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521857) 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, 29788 + ... + 29905.

It is an arithmetic number, because the mean of its divisors is an integer number (895410).

Almost surely, 2^3521887 is an apocalyptic number.

3521887 is a deficient number, since it is larger than the sum of its proper divisors (59753).

3521887 is an equidigital number, since it uses as much as digits as its factorization.

3521887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59752.

The product of its digits is 13440, while the sum is 34.

The square root of 3521887 is about 1876.6691237403. The cubic root of 3521887 is about 152.1452760416.

The spelling of 3521887 in words is "three million, five hundred twenty-one thousand, eight hundred eighty-seven".