3581997 has 8 divisors (see below), whose sum is σ = 4983744. Its totient is φ = 2284128.

The previous prime is 3581971. The next prime is 3581999. The reversal of 3581997 is 7991853.

It is a happy number.

3581997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3581997 - 2⁷ = 3581869 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25888 + ... + 26025.

It is an arithmetic number, because the mean of its divisors is an integer number (622968).

Almost surely, 2^3581997 is an apocalyptic number.

It is an amenable number.

3581997 is a deficient number, since it is larger than the sum of its proper divisors (1401747).

3581997 is a wasteful number, since it uses less digits than its factorization.

3581997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51939.

The product of its digits is 68040, while the sum is 42.

The square root of 3581997 is about 1892.6164429171. The cubic root of 3581997 is about 153.0059803720.

The spelling of 3581997 in words is "three million, five hundred eighty-one thousand, nine hundred ninety-seven".