3604855 has 4 divisors (see below), whose sum is σ = 4325832. Its totient is φ = 2883880.

The previous prime is 3604829. The next prime is 3604871. The reversal of 3604855 is 5584063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5584063 = 127 ⋅43969.

It is a de Polignac number, because none of the positive numbers 2^k-3604855 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360481 + ... + 360490.

It is an arithmetic number, because the mean of its divisors is an integer number (1081458).

Almost surely, 2^3604855 is an apocalyptic number.

3604855 is a deficient number, since it is larger than the sum of its proper divisors (720977).

3604855 is an equidigital number, since it uses as much as digits as its factorization.

3604855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720976.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 3604855 is about 1898.6455698734. The cubic root of 3604855 is about 153.3307524245.

The spelling of 3604855 in words is "three million, six hundred four thousand, eight hundred fifty-five".