3581897 has 4 divisors (see below), whose sum is σ = 3907536. Its totient is φ = 3256260.

The previous prime is 3581881. The next prime is 3581911. The reversal of 3581897 is 7981853.

It is a happy number.

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 3581897 - 2⁴ = 3581881 is a prime.

It is a super-2 number, since 2×3581897² = 25659972237218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3581827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162803 + ... + 162824.

It is an arithmetic number, because the mean of its divisors is an integer number (976884).

Almost surely, 2^3581897 is an apocalyptic number.

It is an amenable number.

3581897 is a deficient number, since it is larger than the sum of its proper divisors (325639).

3581897 is a wasteful number, since it uses less digits than its factorization.

3581897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325638.

The product of its digits is 60480, while the sum is 41.

The square root of 3581897 is about 1892.5900242789. The cubic root of 3581897 is about 153.0045565163.

The spelling of 3581897 in words is "three million, five hundred eighty-one thousand, eight hundred ninety-seven".