3644395 has 8 divisors (see below), whose sum is σ = 4384800. Its totient is φ = 2907840.

The previous prime is 3644357. The next prime is 3644411. The reversal of 3644395 is 5934463.

It is a happy number.

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

It is not a de Polignac number, because 3644395 - 2⁹ = 3643883 is a prime.

It is a super-2 number, since 2×3644395² = 26563229832050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3644395.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1906 + ... + 3304.

It is an arithmetic number, because the mean of its divisors is an integer number (548100).

Almost surely, 2^3644395 is an apocalyptic number.

3644395 is a deficient number, since it is larger than the sum of its proper divisors (740405).

3644395 is a wasteful number, since it uses less digits than its factorization.

3644395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925.

The product of its digits is 38880, while the sum is 34.

The square root of 3644395 is about 1909.0298583312. The cubic root of 3644395 is about 153.8893200347.

The spelling of 3644395 in words is "three million, six hundred forty-four thousand, three hundred ninety-five".