3649465 has 8 divisors (see below), whose sum is σ = 4408200. Its totient is φ = 2900352.

The previous prime is 3649417. The next prime is 3649469. The reversal of 3649465 is 5649463.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 946729 + 2702736 = 973^2 + 1644^2 .

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 3649465 - 2⁷ = 3649337 is a prime.

It is a d-powerful number, because it can be written as 3³ + 6³ + 4² + 9² + 4⁷ + 6⁸ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (3649469) 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, 1540 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (551025).

Almost surely, 2^3649465 is an apocalyptic number.

It is an amenable number.

3649465 is a deficient number, since it is larger than the sum of its proper divisors (758735).

3649465 is a wasteful number, since it uses less digits than its factorization.

3649465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811.

The product of its digits is 77760, while the sum is 37.

The square root of 3649465 is about 1910.3572964239. The cubic root of 3649465 is about 153.9606494163.

It can be divided in two parts, 3649 and 465, that added together give a palindrome (4114).

The spelling of 3649465 in words is "three million, six hundred forty-nine thousand, four hundred sixty-five".