3591641 has 8 divisors (see below), whose sum is σ = 3896424. Its totient is φ = 3297280.

The previous prime is 3591631. The next prime is 3591649. The reversal of 3591641 is 1461953.

It can be written as a sum of positive squares in 4 ways, for example, as 366025 + 3225616 = 605^2 + 1796^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3591641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3591649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1880 + ... + 3273.

It is an arithmetic number, because the mean of its divisors is an integer number (487053).

Almost surely, 2^3591641 is an apocalyptic number.

It is an amenable number.

3591641 is a deficient number, since it is larger than the sum of its proper divisors (304783).

3591641 is a wasteful number, since it uses less digits than its factorization.

3591641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211.

The product of its digits is 3240, while the sum is 29.

The square root of 3591641 is about 1895.1625260120. The cubic root of 3591641 is about 153.1431726870.

The spelling of 3591641 in words is "three million, five hundred ninety-one thousand, six hundred forty-one".