3634865 has 8 divisors (see below), whose sum is σ = 4697448. Its totient is φ = 2684160.

The previous prime is 3634861. The next prime is 3634877. The reversal of 3634865 is 5684363.

It can be written as a sum of positive squares in 4 ways, for example, as 703921 + 2930944 = 839^2 + 1712^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3634865 - 2² = 3634861 is a prime.

It is a d-powerful number, because it can be written as 3³ + 6⁴ + 3⁶ + 4³ + 8 + 6⁸ + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3634861) 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, 27896 + ... + 28025.

It is an arithmetic number, because the mean of its divisors is an integer number (587181).

Almost surely, 2^3634865 is an apocalyptic number.

It is an amenable number.

3634865 is a deficient number, since it is larger than the sum of its proper divisors (1062583).

3634865 is a wasteful number, since it uses less digits than its factorization.

3634865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55939.

The product of its digits is 51840, while the sum is 35.

The square root of 3634865 is about 1906.5321922276. The cubic root of 3634865 is about 153.7550640586.

The spelling of 3634865 in words is "three million, six hundred thirty-four thousand, eight hundred sixty-five".