3651489 has 12 divisors (see below), whose sum is σ = 5292196. Its totient is φ = 2426112.

The previous prime is 3651467. The next prime is 3651491. The reversal of 3651489 is 9841563.

It can be written as a sum of positive squares in 2 ways, for example, as 291600 + 3359889 = 540^2 + 1833^2 .

It is not a de Polignac number, because 3651489 - 2¹² = 3647393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3651409) 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, 3429 + ... + 4365.

Almost surely, 2^3651489 is an apocalyptic number.

It is an amenable number.

3651489 is a deficient number, since it is larger than the sum of its proper divisors (1640707).

3651489 is a wasteful number, since it uses less digits than its factorization.

3651489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1373 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3651489 is about 1910.8869668298. The cubic root of 3651489 is about 153.9891064426.

The spelling of 3651489 in words is "three million, six hundred fifty-one thousand, four hundred eighty-nine".