3521897 has 4 divisors (see below), whose sum is σ = 3707280. Its totient is φ = 3336516.

The previous prime is 3521867. The next prime is 3521909. The reversal of 3521897 is 7981253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3521897 - 2¹⁰ = 3520873 is a prime.

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, 92663 + ... + 92700.

It is an arithmetic number, because the mean of its divisors is an integer number (926820).

Almost surely, 2^3521897 is an apocalyptic number.

It is an amenable number.

3521897 is a deficient number, since it is larger than the sum of its proper divisors (185383).

3521897 is a wasteful number, since it uses less digits than its factorization.

3521897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185382.

The product of its digits is 15120, while the sum is 35.

The square root of 3521897 is about 1876.6717880333. The cubic root of 3521897 is about 152.1454200412.

The spelling of 3521897 in words is "three million, five hundred twenty-one thousand, eight hundred ninety-seven".