3643395 has 24 divisors (see below), whose sum is σ = 6782544. Its totient is φ = 1665216.

The previous prime is 3643369. The next prime is 3643403. The reversal of 3643395 is 5933463.

It is not a de Polignac number, because 3643395 - 2⁵ = 3643363 is a prime.

3643395 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1744 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (282606).

Almost surely, 2^3643395 is an apocalyptic number.

3643395 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3643395 is a deficient number, since it is larger than the sum of its proper divisors (3139149).

3643395 is a wasteful number, since it uses less digits than its factorization.

3643395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4979 (or 4972 counting only the distinct ones).

The product of its digits is 29160, while the sum is 33.

The square root of 3643395 is about 1908.7679272243. The cubic root of 3643395 is about 153.8752433135.

The spelling of 3643395 in words is "three million, six hundred forty-three thousand, three hundred ninety-five".