3557641 has 8 divisors (see below), whose sum is σ = 3831840. Its totient is φ = 3290688.

The previous prime is 3557639. The next prime is 3557647. The reversal of 3557641 is 1467553.

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

It is a cyclic number.

It is not a de Polignac number, because 3557641 - 2¹ = 3557639 is a prime.

It is a Duffinian number.

3557641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3557647) 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, 771 + ... + 2776.

It is an arithmetic number, because the mean of its divisors is an integer number (478980).

Almost surely, 2^3557641 is an apocalyptic number.

It is an amenable number.

3557641 is a deficient number, since it is larger than the sum of its proper divisors (274199).

3557641 is a wasteful number, since it uses less digits than its factorization.

3557641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623.

The product of its digits is 12600, while the sum is 31.

The square root of 3557641 is about 1886.1709890675. The cubic root of 3557641 is about 152.6584003160.

The spelling of 3557641 in words is "three million, five hundred fifty-seven thousand, six hundred forty-one".