3651284 has 36 divisors (see below), whose sum is σ = 8010324. Its totient is φ = 1443456.

The previous prime is 3651281. The next prime is 3651293. The reversal of 3651284 is 4821563.

3651284 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 1768900 + 1882384 = 1330^2 + 1372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1832 + ... + 3264.

It is an arithmetic number, because the mean of its divisors is an integer number (222509).

Almost surely, 2^3651284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3651284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4005162).

3651284 is an abundant number, since it is smaller than the sum of its proper divisors (4359040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3651284 is a wasteful number, since it uses less digits than its factorization.

3651284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1455 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 3651284 is about 1910.8333260648. The cubic root of 3651284 is about 153.9862246631.

The spelling of 3651284 in words is "three million, six hundred fifty-one thousand, two hundred eighty-four".