3634965 has 12 divisors (see below), whose sum is σ = 6300684. Its totient is φ = 1938624.

The previous prime is 3634963. The next prime is 3634993. The reversal of 3634965 is 5694363.

It can be written as a sum of positive squares in 2 ways, for example, as 2792241 + 842724 = 1671^2 + 918^2 .

It is not a de Polignac number, because 3634965 - 2¹ = 3634963 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3634963) 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, 40344 + ... + 40433.

It is an arithmetic number, because the mean of its divisors is an integer number (525057).

Almost surely, 2^3634965 is an apocalyptic number.

It is an amenable number.

3634965 is a deficient number, since it is larger than the sum of its proper divisors (2665719).

3634965 is a wasteful number, since it uses less digits than its factorization.

3634965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80788 (or 80785 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3634965 is about 1906.5584176731. The cubic root of 3634965 is about 153.7564740482.

The spelling of 3634965 in words is "three million, six hundred thirty-four thousand, nine hundred sixty-five".