3556651 has 8 divisors (see below), whose sum is σ = 4241664. Its totient is φ = 2915880.

The previous prime is 3556649. The next prime is 3556669. The reversal of 3556651 is 1566553.

3556651 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 a cyclic number.

It is not a de Polignac number, because 3556651 - 2¹ = 3556649 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 5 + 5³ + 6⁴ + 6⁵ + 5⁹ + 1 .

3556651 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3556601) 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, 10885 + ... + 11206.

It is an arithmetic number, because the mean of its divisors is an integer number (530208).

Almost surely, 2^3556651 is an apocalyptic number.

3556651 is a deficient number, since it is larger than the sum of its proper divisors (685013).

3556651 is a wasteful number, since it uses less digits than its factorization.

3556651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22121.

The product of its digits is 13500, while the sum is 31.

The square root of 3556651 is about 1885.9085343675. The cubic root of 3556651 is about 152.6442387000.

The spelling of 3556651 in words is "three million, five hundred fifty-six thousand, six hundred fifty-one".