3845655 has 48 divisors (see below), whose sum is σ = 7716384. Its totient is φ = 1751040.

The previous prime is 3845651. The next prime is 3845663. The reversal of 3845655 is 5565483.

3845655 = 875² + 876² + ... + 879².

It is not a de Polignac number, because 3845655 - 2² = 3845651 is a prime.

3845655 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8187 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (160758).

Almost surely, 2^3845655 is an apocalyptic number.

3845655 is an abundant number, since it is smaller than the sum of its proper divisors (3870729).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3845655 is a wasteful number, since it uses less digits than its factorization.

3845655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 493 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 3845655 is about 1961.0341659441. The cubic root of 3845655 is about 156.6715380005.

The spelling of 3845655 in words is "three million, eight hundred forty-five thousand, six hundred fifty-five".